Alternatives to Proton Calendar
Compare Proton Calendar alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Proton Calendar in 2026. Compare features, ratings, user reviews, pricing, and more from Proton Calendar competitors and alternatives in order to make an informed decision for your business.
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1
Proton Pass
Proton AG
Proton Pass is an open-source password manager based in Switzerland that encrypts your usernames, passwords, bank cards, and encrypted notes and lets users quickly autofill details across all devices and browsers. Proton Pass goes beyond keeping your password safe, it secures your online identity with its additional features and enables secure sharing of log-in information. Proton Pass is built by the same team of scientists who met at CERN and created Proton Mail, the world’s largest encrypted email service. Proton has been recommended by the United Nations for sharing highly sensitive data, and our encryption is open source and battle tested. Proton Pass is the first password manager built by a security company with a privacy-first philosophy. Join the millions of people who have signed up for Proton to protect their information. -
2
Proton Drive
Proton AG
Proton Drive is the all-in-one workspace for storing sensitive data and collaborating with your teams, clients, and partners. Collaborate securely without compromising control: Share client files, contracts, and sensitive business documents with full end-to-end encryption. You control who can access what. Set passwords, add expiry dates, or revoke access anytime. Protect all your business data: Plans come with 1 TB of storage allowance per user, giving your team enough space for all their files and docs. You can always add more storage later if needed. Simplify compliance across industries: Proton Drive supports GDPR, HIPAA, NIS2, DORA, and ISO 27001 compliance out of the box, and has been successfully audited for SOC 2 Type II. There's no need for custom configurations or third-party tools, as this helps you meet regulatory standards with minimal effort. -
3
Proton Mail
Proton AG
Proton Mail is the simplest way to protect your communications with built-in end-to-end encryption. Prevent data breaches, stay compliant with regulations like GDPR and HIPAA, and earn client trust. Protected by Swiss privacy laws and trusted by over 50,000 businesses, Proton Mail keeps your business data confidential and under your control. With Proton Mail and Calendar, your team can securely manage their inbox and schedule, while your organization maintains a professional presence with support for custom email domains and personalized branding. And with the Easy Switch tool, migrating from Google or Microsoft is seamless, no IT expertise required. -
4
Proton VPN
Proton AG
Protect your business against damaging data breaches and easily comply with security frameworks like ISO 27001, GDPR, and HIPAA. Our software-only virtual private network easily integrates with your existing infrastructure to provide a flexible and scalable way to protect your organization. With our VPN Professional plan, you can securely access your LAN and SaaS resources by assigning and segmenting permissions to private dedicated VPN servers, allowing employees to access only what they need. With all plans, your network traffic is secured using strong AES-256 or ChaCha20 encryption. You can further strengthen your organization's security with enforced 2FA and seamless login through single sign-on (SSO) with SCIM support for automated user provisioning. Proton VPN's high-speed server network is one of the largest in the world and is part of a suite of open source end-to-end encrypted products from the makers of Proton Mail that are designed to keep your business secure. -
5
Trumba
Trumba
Trumba is an event calendar and registration platform for your website or intranet. Manage all your event data in one place and publish custom calendars for your end users. Trumba currently powers the event calendars for large organizations and small businesses worldwide. Features include: • Customizable and unlimited calendars to cater to multiple audiences or business units. • Integration with 3rd party calendars to manage and publish all events in one place. • Flexible event management with custom templates and role-based editor access. • Event registration with custom forms and payment gateway support. • Attendee management including automated wait listing. • HIPAA-compliant solution for hospitals and healthcare organizations. • SSO support for user and visitor management. • Automated reminders and follow-ups, calendar syncing and personalized event lists. • Integration services and ongoing support included. • And so much more.... Get a demo or free trial today. -
6
Bordio
Bordio
Bordio is a comprehensive project management software that integrates team management software, task management tools, and a project planning calendar all in one platform. It brings together everything teams need to get their work done, from setting up projects with a project planner and organizing tasks on a kanban board, to collaborating with team members using a task board. The platform provides a clear view of what needs to be done each day with its online calendar, making overwhelming to-do lists a thing of the past. With features for scheduling tasks on specific days and keeping track of progress with color-coded statuses, Bordio keeps teams focused and acts as an effective project tracker and task tracker. You can invite guests like clients or freelancers into projects at no extra cost and work together seamlessly. The inclusion of a team task planner and team tracker ensures that every member’s efforts are synchronized and visible.Starting Price: $5.99 per user per month -
7
ProtonPACS
Radsource
ProtonPACS is a picture archiving and communication solution that manages image access, storage and distribution, optimizing workflow across the organization. It includes front & back end patient management solutions that minimize manual and/or duplicate entry of patient information. HL7 integration to information systems (EHR, RIS, etc.) is included in the platform. ProtonPACS features Intelerad's Inteleviewer, a diagnostic viewer that provides radiologists and other healthcare professionals tools to optimize images, change layouts, measure critical data points, perform image reconstructions and create key images. In radiology environments, its worklist and integrated speech recognition engine allow radiologists to generate reports for referring physicians, and both reports & images are available via any web-enabled device through the system’s referring physician portal. ProtonPACS utilizes a secure hybrid model that employs on-premise hardware with simultaneous cloud hosting.Starting Price: $2/study -
8
Manjaro
Manjaro
Is an accessible, friendly, open-source operating system. Providing all the benefits of cutting-edge software combined with a focus on getting started quickly, automated tools to require less manual intervention, and help readily available when needed. Manjaro is suitable for both newcomers and experienced computer users. Unlike proprietary operating systems you have full control over your hardware without restrictions. This makes Manjaro a powerful Operating System ideal in home, work, and development environments. It is easily possible to run many popular Windows applications, using compatibility software such as Wine, PlayonLinux or Proton via Steam. The examples given here are far from comprehensive! Representing a perfect middle-ground for those who want good performance, full control, and cutting-edge software but also a degree of software stability. -
9
Tuta Calendar
Tuta
Tuta Calendar is a zero-knowledge calendar with quantum-safe encryption, ensuring that all your events are protected from snooping and prying eyes. Whether you schedule events, receive event invitations, or share your calendar with others, all steps in the Tuta Calendar are automatically encrypted end-to-end. This means your data belongs to you, and no one else can access it. The intuitive, clean design allows for easy organization of appointments, business meetings, and repeating tasks. Push notifications are sent securely, so no third party can track you. Two-factor authentication can be enabled to protect your login credentials from malicious attacks. Tuta Calendar is available with free and open source desktop clients. You can share calendars and events with your family, organization, or company with a few taps.Starting Price: €3 per month -
10
Proton Meet
Proton
Proton Meet is a secure, privacy-first video conferencing tool from the team behind Proton Mail, designed to protect video calls with end-to-end encryption so that no one, not advertisers, not hackers, not governments, and not even Proton, can access the contents of your meetings, conversations, or shared screens, making it suitable for confidential business discussions, sensitive team collaborations, and private catch-ups with friends and family. It brings Proton’s zero-knowledge encryption philosophy from email, calendar, and storage to real-time communication, ensuring every moment of your call is encrypted on your device before transmission and decrypted only on participants’ devices, preventing third-party access and preserving privacy even during live sessions. Proton Meet is currently in closed beta testing and is available to Proton community members on certain paid plans with early access.Starting Price: Free -
11
Proton Wallet
Proton AG
Unlike centralized exchanges, Proton Wallet ensures only you can access your Bitcoin. Proton Wallet is a self-custody wallet, meaning we use end-to-end encryption to ensure that you are the only one with access to your wallet's encryption keys. Our robust recovery methods mean you can never be locked out from your Bitcoin — not even by us. Proton Wallet allows you to easily acquire Bitcoin using credit cards or bank transfers from all around the world through our financial partners, with a particularly low friction process for smaller amounts. Proton Wallet generates a pool of Bitcoin addresses for you. Each time you receive BTC from someone using Bitcoin via Email, it automatically uses a different address from your pool, protecting your privacy and making it difficult to connect your transactions. Proton Wallet is headquartered in Switzerland, meaning your data, including transactions, are protected by some of the world’s strictest privacy laws.Starting Price: Free -
12
Proton Sheets
Proton
Proton Sheets is a privacy-first, web-based spreadsheet tool built into Proton Drive’s encrypted cloud workspace that lets users create, edit, and collaborate on spreadsheets while keeping all data fully end-to-end encrypted so that only authorized collaborators can access the content, not even Proton can see it, defending sensitive information from surveillance, data harvesting, or AI training. You can start a new spreadsheet directly within Proton Drive, import files from CSV, XLS, or Excel formats, and organize your data across multiple tabs with standard spreadsheet features such as built-in formulas (e.g., SUM, IF), conditional formatting, sorting, and charts/graphs to visualize numbers and trends for budgets, tracking, or project planning, and you can work in real time with others who have access. Proton Sheets supports real-time collaboration with shared editing and access control, lets you manage who can view or edit your files, and keeps version history secure.Starting Price: $9.99 per month -
13
Proton Radio
Proton
Streaming the best in electronic music live and on demand. Breaks, Minimal, Progressive, House, Techno, Electro, and more on 200+ exclusive shows. The station features over 200 exclusive shows from various DJs around the world, with featured guest DJ sets. Carefully curated underground dance music radio, streaming 24/7. We're honored you're interested in doing a mix for Proton Radio! Here's how it works, if you're not the resident of a radio show already. If your music label is distributed by Proton, then you're first in line for residencies & guest mixes on Proton Radio. If you're interested in hosting a show, get in touch, and we'll explain how it works. If you're on a music label distributed by Proton, and you'd like to do a mix to promote an upcoming release, chat with your label manager about submitting a guest mix to Proton. Your best bet is to browse the Proton Top 100 and contact our residents via their SoundCloud pages. -
14
Proton Authenticator
Proton
Proton Authenticator is a privacy-first two-factor authentication app that generates time-based one-time passwords to add an extra layer of login security for online accounts beyond just a password, so users can secure accounts across all their devices. It is open source and uses end-to-end encryption, meaning all cryptographic operations and secret keys are generated and stored locally, and even Proton cannot see your unencrypted 2FA data, offering transparency and strong privacy by design. Users can sync 2FA codes across devices with encrypted backups (including via iCloud or a Proton Account), import existing codes from other authenticator apps, and export them if needed, giving flexibility and control over 2FA secrets without vendor lock-in. Proton Authenticator is free to use, has no ads or tracking, and supports secure practices like biometric locks and offline access, so users can generate login codes.Starting Price: Free -
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Proton Docs
Proton AG
Billions of people use online document editors like Google Docs or Microsoft 365 to write reports, collaborate on projects, and keep track of meeting notes. But there is a growing concern about Big Tech platforms having access to your content, tracking you across the web, and collecting data to train privacy-invading AI models. Proton Docs is a new end-to-end encrypted, collaborative document editor that puts your privacy first. Docs in Proton Drive are built on the same privacy and security principles as all our services, starting with end-to-end encryption. Docs let you collaborate in real time, leave comments, add photos, and store your files securely. Best of all, it’s all private — even keystrokes and cursor movements are encrypted.Starting Price: Free -
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Proton SoundSystem
Proton
Proton SoundSystem powers over 2K independent electronic music labels. Beyond distro, our platform helps our labels manage and promote their releases, save time, and grow in a reliable, sustainable and innovative way. We offer a range of exclusive services and features that are simply not available together anywhere else. Running a digital electronic music label is a lot of work. At Proton, we make it easier, sustainable, and a lot more fun! We help label managers automate a lot of the "boring" work, so they can focus more time on the creative side of things. The crew that runs Proton also run their own music labels, produce their own music, and many of them are DJs too. We're passionate about music and have built Proton to help solve problems that we face every day as music makers and lovers ourselves. SoundSystem is a constantly evolving platform designed to meet the ever-changing needs of our industry and community. -
17
Lumo
Proton AG
Lumo is a privacy-first AI assistant built to deliver the power of generative AI while keeping your conversations completely confidential. Developed by the privacy experts behind Proton Mail and VPN, Lumo ensures that your dialogues remain yours alone, no logs are stored on the server side, and all saved chats are encrypted with zero-access encryption, meaning even Proton cannot read them. Open source by design, the service is transparent and verifiable. You can ask Lumo anything, from summarizing documents and rewriting emails to coding assistance, translations, brainstorming, and more, without any risk of your data being used to train models or shared with third parties. Conversations are encrypted end-to-end, and even the AI’s web search capability (if enabled) runs through privacy-friendly engines. Available without signup and deployable via web or mobile apps, Lumo offers both free and plus plans.Starting Price: €9.99 per month -
18
Prot-On
Cognicase Management Consulting
All copies of the document will be protected with strong encryption regardless of where they are stored; Devices, Cloud Services, USB. Every time users try to open the protected document Prot-On will check if they are authorized to do so and what type of access they have. You can check the activity log to see who has accessed your document, and change permissions even after the file has been distributed.Starting Price: €10 per month -
19
SSuite NetSurfer Prometheus
SSuite Office Software
SSuite NetSurfer Prometheus is a revolutionary browser that, rather than stealing fire, gifts you the blazing speed, security, and innovation needed to dominate the online digital realm without facing the wrath of BigTech, or any of the limitations of typical Chromium-based clones. Your safety and privacy are absolutely guaranteed with this advanced browser through its unique ability to install premium hand-picked third-party manifest extensions e.g. Proton Pass, Proton VPN, and uBlock Origin v2 and v3 editions, just to name a few from our own Extension Library... There are No performance dips, No sluggishness; just pure, uninterrupted browsing bliss ensuring rapid page loads and smooth navigation across the web! Its lightweight design ensures smooth operation, even on less powerful devices, making it ideal for both intense gaming sessions and relaxed entertainment breaks. So... take a seat, open a new tab, and get ready to browse the web like a Titan legend!Starting Price: $0 -
20
ProxiedMail
ProxiedMail
ProxiedMail is a proxy email service that aims to change the standard email flow to make emails smarter and more secure. Our goal is to separate email addresses and email clients so everyone can achieve more freedom and privacy by moving from one email provider to another just in a few clicks like moving from Gmail to ProtonMail. Using ProxiedMail you can generate unlimited email addresses for every website or purpose you want and receive the letters to your final emails. In this way, you can: - Protect yourself from spam - Avoid leaving your private data in places where you can avoid it - Creating proxy emails with your domain - Send messages from your proxy email - Also we're providing API and webhooks for incoming emails that would make software testing easier and connect the system they don't provide any API's, but do send emails - Zapier integrationStarting Price: $15/year -
21
Google Calendar
Google
Make the most of every day. The new Google Calendar app helps you spend less time managing your schedule and more time enjoying it. A Schedule with a View. Schedule View brings your schedule to life and makes it easy to see what's ahead with images and maps. Everything you need. Various views of your day, week and month, invitations, web calendar and much more. Backup everything. Your events are always saved on the Web. If you lose your phone, you don't lose your address book. Different ways to view your calendar - Quickly switch between month, week, and day views. Events from Gmail - Flight, hotel, concert, restaurant reservations, and more are added to your calendar automatically. Tasks - Create, manage, and view your tasks alongside your events in Calendar. Video conferencing - Easily add video conferencing to calendar events. Quick event creation - Smart suggestions for event titles, places, and people save you time when creating events.Starting Price: $0 -
22
ARIA Clinical Solutions
Varian Medical Systems
ARIA® oncology information system supports medical and radiation oncology, including proton therapy. Review clinical images, prescriptions, lab results, QA, outcomes, and more. Automate cancer staging based on AJCC guidelines and manage toxicities flexibly. Our focus on interoperability lets you make the most of patient data across devices and platforms. We offer extensive HL7 and DICOM support and make it easy to transfer patient data between hospitals. Your teams get instant access to patient data so they can improve planning and make adjustments on the fly when necessary. We can help you optimize image-guided treatment techniques using radiographic, fluoroscopic, and cone-beam CT images. ARIA OIS documents activities for evidence-based Pay-for-Performance programs and facilitates HIPAA compliance. ARIA stores and organizes patient data and images so your teams can stay up to date and focused on care. -
23
Let's Calendar
Manomay Informatics LLC
Let's Calendar is the worlds first and most advanced bulk calendar invite tool designed to help event managers, conference organizers, webinar admins, or simply any type of event and meeting organizers to send mass calendar invites to thousands of participants at once, and block their contacts date/time with details about their event and ensure a healthy turnout! Let's Calendar is hosted on Amazon Cloud and ensure great privacy tools that help protect your content and your contacts while allowing you to safely and securely upload your event contacts and send bulk calendar invites instantly in 1-click. Simply create your campaign, upload your contacts and hit "send" and let Let's Calendar handle all the magic in the backend. Let's Calendar will discreetly send the invites using your email id and your sender name to all the recipients in a way that they do not see each others details and the calendar invite is compatible with all browsers, devices and time zone.Starting Price: $49.99 per month -
24
Calendar 365
AppJetty
Introducing Calendar 365 for Dynamics CRM - Your Ultimate Time Management Solution! Stay organized, efficient, and in control of your schedule with Calendar 365 for Dynamics CRM. Designed to seamlessly integrate with Microsoft Dynamics CRM, this powerful calendar extension revolutionizes the way you manage your time, tasks, and appointments. Whether you're a sales professional, customer support agent, or project manager, Calendar 365 is your indispensable tool for maximizing productivity and staying on top of your daily activities. Here are some features that can help you improve the productivity of your team: - Seamless Integration - Intuitive Interface - Customizable Views - Color Coding - Smart Reminders - Team Collaboration - Mobile Accessibility - Time Zone Support - Analytics and Reporting - Security and PrivacyStarting Price: $599 yearly (1-10 users) -
25
Breeze
Breeze Calendar
Breeze is a minimalistic scheduling application to help you avoid finding common time for meetings over email or text. It connects with your Google Calendar to manage appointments that your guests can schedule from a simple web page. You can have as many Breeze pages as you want. A Breeze page is set per each type of event you configure within Breeze, and each page comes with a unique URL you can share with your guests. You can have event pages for business or for your personal activities - all hassle free and according to your availability! Quickly setup your preferences, share your Breeze pages with your guests and let us do the rest. Once a guest books time with you, Breeze will automatically add it to your calendar and create a Google Meet or Zoom call link for you. Breeze works great for entrepreneurs and teams all over the globe and across multiple time zones, with automated detection and settings.Starting Price: $5 per month -
26
Calendbook.com
Calendbook.com
Through Calendbook you can create various events, mark the days and times when you are available for appointments, and share links with customers and colleagues. Our goal is to support the remote worker. We work every day to reduce the clicks necessary to manage the agenda and simplify the use of Calendbook.com. The platform will soon launch new features, such as the ability to receive payment in advance for advice, services and events from those who book an appointment through the calendar. Never miss an appointment, you will always have a reminder. Don't worry You can cancel or reschedule your appointments whenever you want. Calendbook respects the time zone of your contacts. Make your contacts know when you are available setting the days and times you prefer. When your contacts book an appointment, Calendbook will only show the times you are available. For all confirmed appointments, Calendbook creates an event directly on your Google Calendar.Starting Price: €4 per month -
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Calendar.online
Calendar.online
For your calendar you get several access links for which you can set individual permissions (e.g. read or write). For increased security, each access link can be additionally protected with a password. Due to the easy access via links and the extensive rights management, Calendar.online is optimally suited to work on a calendar with several people in an uncomplicated way. Structure your calendar with colored sub-calendars. For each access link, you can also define which sub-calendars are readable and writable. Get reminders of your appointments via email or SMS. You also have the option to send reminders to your team and family members. You can receive daily or weekly agenda reminders so that you can stay informed by email about upcoming events. Additionally, you can receive notifications about new events or event changes by email.Starting Price: $7.90 per month -
28
Calendar
Calendar
With Calendar Contacts, you can easily manage and track connections as well as send meeting invites, introduces associates, and find a time on your calendar to spend with friends. Whether it's lunch meeting with a colleague, a catch-up over coffee with a friend, or an upcoming conference call with a client, you can use Calendar Contacts to spend event creation. Inviting guests only takes seconds now that your contacts are integrated with your calendar. Calendar will continue to evolve as your needs and behaviors change to provide a suite of tools. As your organization grows, it becomes harder to manage processes. When it comes to your scheduling, we'd wager it hasn't been updated in years. Calendar intelligently categorizes project meetings to figure out the relationships between your plans and the people in your meetings.Starting Price: $6 per user per month -
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CalendarWiz
CalendarWiz
Collaborate with your team, share events and activities, or manage private schedules. Calendars, event boards, and other plugins are quickly embedded in any website. Send invites and reminders, and prevent double bookings. Coordinate with your team and manage staff schedules, vacation requests, and other important dates. Keep everyone in sync with multiuser event editing and real-time updates on all of your devices. There's nothing to download or install. View and edit your calendar from any device and share it with one simple link. Send invites and reminders with optional RSVP. Keep your team informed with updates about events and schedule changes. Allow team members to update their calendars with multiuser editing. Administrators have full control over viewing and editing permissions.Starting Price: $9 per month -
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UpTo
UpTo
Gone are the days of static event calendars that collect dust. UpTo events are interactive, letting your customers and fans share events and save them to their personal calendar. People are constantly on the go and they check their calendar at least 5 times each day. Can you say the same for your website's calendar? UpTo's app for iPhone and Android allows users to see their own calendar alongside yours whenever, wherever. You shouldn't need an IT department just to update your calendar. Add events through your online account and watch them sync seamlessly across UpTo's mobile app and web calendars. Your UpTo calendar has two layers. The front layer is your existing calendar. The back layer includes calendars you follow based on your likes and interests. Expand your calendar to reveal the back layer of events with just a pinch or tap.Starting Price: $9 per month -
31
BlackBerry Hub+
BlackBerry
Up your game with BlackBerry apps on your Android phone. Give your phone a productivity boost from BlackBerry®. Whether it’s integrating all your messages and social notifications into one place or giving you a really smart Calendar, BlackBerry makes sure doing stuff on your Android™ phone is effortless. Keep organized with BlackBerry® Hub+ Inbox. Inbox consolidates all your email, calendar events and social notifications from apps like Facebook, WeChat, Twitter, LinkedIn and WhatsApp in one unified app. You can also sync your BlackBerry Hub+ Inbox with Wear OS by Google devices to receive notifications and respond directly from your watch. BlackBerry® Hub+ Calendar allows you to schedule appointments and create events with ease. Use the Agenda, Day, Week, or Month view to quickly glance at your events and respond to meeting invitations directly from the BlackBerry Hub+ Inbox. You can also call into meetings directly from your event reminder with just one tap. -
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Smart Calendars AI
Smart Calendars AI
Transform your scheduling experience with Smart Calendars AI, where scheduling becomes effortless through the power of artificial intelligence. Speak, snap a photo, or paste text to create calendar events instantly - no more manual data entry. Smart Calendars AI automatically detects dates, times, and locations in multiple languages, converts physical invitations into digital events through photo recognition, and responds to natural voice commands. Working seamlessly across the Apple ecosystem, Smart Calendar AI processes your emails, messages, websites, and notes into calendar entries. Use Smart Calendars AI to receive smart scheduling suggestions based on your preferences. The clean, modern interface eliminates clutter while offering powerful sharing options including expirable quick links and custom QR codes. With a privacy-first approach combining local processing and minimal cloud interaction, your schedule stays secure and private. Available for iPhone, iPad, and macOS.Starting Price: Free -
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AddEvent
AddEvent
AddEvent is the leading no-code platform for calendar and event marketing, helping businesses promote events and calendars, drive attendance, and reduce no-shows. With Add to Calendar buttons, Embeddable Calendar widgets, Subscription Calendars, online RSVPs, and Dynamic Add to Calendar for appointments, AddEvent makes it simple to connect your events with your audience’s personal calendars. Create branded event landing pages without coding, embed calendars or event lists on your website, and use automated reminders to keep attendees engaged. AddEvent’s no-code tools are designed to help marketers, event professionals, and product teams maximize attendance & retention. Whether you’re promoting webinars, conferences, or community events, AddEvent gives you the power to get on their calendars, improve engagement, and make sure your customers never miss what’s next. For organizations looking to reduce appointment no-shows, check out Dynamic Add to Calendar to drive revenue.Starting Price: $29 per month -
34
CalendarSpots
CalendarSpots
Our user-friendly online booking calendars allow you to efficiently manage your appointments, classes and schedules. While our flexible and customizable online scheduler lets your customers book appointments online and reserve spots for classes, workshops and other group events. CalendarSpots.com is a web-based solution designed to simplify the appointment taking process. The Customer Portal allows your clients to book their own appointments, online and on the go, from any web-enabled device and in real time. The Administrative Back-end allows you and your staff to book appointments internally as well as manage your client info, appointment history and work schedules from any mobile device. Different staff user accounts can be created to control who can book, cancel, view and modify appointments. -
35
Agendex
Agendex
Marketing events, training, webinars, whatever it is, easily manage your event calendars in Outlook and then publish them for everyone to see! Bring people, rooms, and resources together with our user-friendly, powerful free/busy search, it even works across multiple Exchange/M365 systems! Stop the email back-and-forth when trying to book meetings with external recipients; just send them your MyAvailability link and let them book what’s convenient for them! Smart, secure calendar sharing and booking for your entire organization. Agendex allows you to share events publicly so that anyone can view them and click to join them on the spot. You can provide a calendar link in emails or on your website, or even embed calendars on your website. Managed directly from Outlook, your everyday tool! These calendars can provide information about marketing events, webinars, training sessions, etc. Visitors can view information about any event and even register if you provide a registration link.Starting Price: $99 per month -
36
Calday
Calday
Calday offers a user-friendly interface with a range of advanced features that enable users to manage appointments, schedule meetings, and send automatic reminders. First and foremost, with our built-in calendar and calendar hub, you can connect all your calendars in one place – including Google Calendar, Outlook, iCal, and more. Calday is designed to support both offline and online businesses, so you can seamlessly integrate scheduling into your workflow no matter what type of business you run. And with our unique feature of allowing clients to book several services at the same time, you can streamline your scheduling process and save time. Plus, Calday offers both web and mobile apps, so you can keep track of your schedule on the go. And with our top-notch tech stack, we guarantee a bug-free experience with the best performance.Starting Price: $10/month -
37
Readdle Calendars
Readdle
Calendars does a great job planning your day, week, and month. User experience was crafted to give you the most from using it on both iPhone and iPad. Organize your work tasks, movies, or shopping list. Add the due date or make your task recurring. Calendars will gently remind you in advance to get it done. Just drag and drop your tasks and events to reschedule an appointment. You can do that both online and offline. Or, ask Siri instead. Whether it's a business meeting, family dinner or a birthday, set up up to five reminders to be notified by alarm or an email in advance. It's a super reliable Reminders app, too. There are a couple of options to share your Google Calendar with others. In your Google Calendar settings, you can allow other people to see or edit events on your calendar. This option is great when you want to keep other people up-to-date about your schedule or delegate events to manage. -
38
Keep&Share
Keep&Share
The easiest and most customizable online calendar that you can access anywhere, anytime. Our shareable group calendars make office communication simple & secure. Plus it's easy to share with anyone! With Keep&Share calendars you can add images, colors, event tags, notes, reminders, notifications, attach files, to do lists, links, and more. You can share anything in your account with anyone on any device, whether they’re part of your team or not. This makes it easy to coordinate with clients, contractors, and anyone else you need for your business. Use custom colors and event tags to group events by team member, location, job, and more. Office managers can even use event tags to filter calendars for only the events that you, your field crews, or office staff want to see. Never miss another deadline — set up automatic email and text reminders for any event or task or your calendar. You can send reminders to yourself any anyone on your team.Starting Price: $9 per month -
39
Timely Event Calendar
Timely
Expand and delight your audience with a beautiful event calendar on your website. Easily create, promote, manage and monetize your events. All in one event calendar software. Our event calendaring software makes it easy to create a striking and engaging event calendar. Build a white-label calendar of events for your website. Easily customize the design to align to your brand and make it stand out. Choose your preferred language and timezone. Embed your calendar code to your website or simply link it to your custom domain, and you are ready to go. Our calendar software for business use has been designed for private, public and nonprofit organizations that organize and host events. It makes it extremely easy to create an event and even import your existing events iCal, Outlook and Google Calendar. Fill your online calendar with events from EventBrite, Meetup and other online sources. -
40
Breezit
Breezit
Running an event business is both exciting and exhausting. Numerous follow-up reminders, scattered customer data, and back-and-forth emails can really take the fun out of the process. Breezit helps bring the fun back by offering a broad set of tools tailored specifically for small businesses and sole traders in the event industry. Create your service profile in a couple of minutes and get everything you need to operate and grow your business: - A clean, SEO optimized listing - your clients will feel like shopping online - A shearable booking link to share on socials or integrate into the website - A CRM for bookings, created specifically for your needs - A calendar with dynamic pricing, where you can adapt your pricing for offseason or weekdays - Contract signing - Secure payment collection straight to your bank account - Review management tools - Passive income from referring partners and demand generation tools (coming soon) Start your free trial nowStarting Price: $20/month/user -
41
BlendedCal
BlendedCal
BlendedCal helps you get control of your calendars. If you have too many calendar subscriptions to keep up with or need to share some or all of your calendars with others and have them stay up to date, BlendedCal makes it easy with tag-based calendars, event filtering, source filtering, and much more.Starting Price: $0 -
42
Koalendar
Koalendar
Schedule your appointments faster and forget the back-and-forth emails. Your calendar stays full, and you stay productive. Simplify meeting scheduling today. Start booking more meetings with less hassle. Never send another "When can you meet?" email again. Get the right people together. At the right time in 3 steps. Setup is easy, add your availability preferences and it'll do the work for you. Share your links via email to let people book your open time slots. They pick a time and the event is added to your Google Calendar. Connect with your calendar and only share the times you want with your guests. Guests get their own notifications, reminders, calendar invites, and more. Keep track of all bookings made on your calendar. Either on the app or on your Google calendar. Thanks to the Google calendar automatic integration, both you and your meeting guests receive reminder emails from Google.Starting Price: $6.99 per month -
43
CalendarX
AddEvent
Communicate to your audience through their calendar. When a user follows your CalendarX calendar, you can push your important events to their personal calendar. Create your first calendar and adjust the settings to fit your needs. Control who can manage the calendar and what you want to know about your followers. Generate an unlimited number of calendars your users can follow. Adding events to your calendar is quick and easy. Add repeating events and set reminders so your audience won't forget. Update events if changes occur. Your followers' calendars will automatically be updated with the changes. Adding the button to your website is easy. Use the button configurator to change appearance of the button or customize it using HTML to match the design of your website. You can also link to a follow page in newsletters and social media. -
44
allcal
All Calendars
Allcal is a complete event schedule management solution for event professionals. Whether you're organizing conferences, expos, or live events, Allcal can help you keep attendees engaged from start to finish. Allcal for events includes features such as interactive web and mobile calendar, real-time updates, instant messaging/chat, unlimited users for Allcal calendar, and plug-and-play calendar solution.Starting Price: $500.00/year -
45
SYNCDATE
Duma Solutions
SYNCDATE is a web application for two-way Google Calendar synchronization. Connect multiple Google accounts, select which calendars to sync, choose direction (one-way or two-way), and SYNCDATE keeps events aligned automatically in the background. Key features: - Multi-account sync — Connect multiple Google accounts and sync events between any of their calendars. - Flexible sync rules — Choose one-way or two-way sync, configure title modes, privacy settings, description copying, and reminder handling per sync process. - Privacy by default — Synced events default to "busy" visibility. Detailed copying is opt-in. - Sync health monitoring — See sync status, freshness, latency, error summaries, and deterministic fix steps from the dashboard. - Clean exit — Delete a sync process and optionally remove all events it created. Reversible and traceable. - Webhook-driven with polling fallback — Events sync within seconds via push notifications, with 15-minute polling as a safety net.Starting Price: Free -
46
grommunio
grommunio
grommunio efficiently summarizes all requirements of modern, digital communication and collaboration. This includes the device and operating system independent management of sensitive data such as e-mail, contacts, calendar, chat, video conference, file sharing and much more – in real time. With open source technology based on Linux, grommunio is scalable and meets the highest security requirements. Thanks to its advanced architecture, grommunio can be integrated into existing systems without great effort. Increase your efficiency by managing emails, contacts, calendars, tasks and much more with just one platform. With integrated enterprise-grade Active Sync, your data is available on all devices in real time. Invite directly from your calendar to online conferences with grommunio Meet, share files of all kinds in grommunio files and talk to your employees at the same time via grommunio chat.Starting Price: €1.99 per mailbox per month -
47
Joynit
Joynit
Joynit is a shared community calendar and scheduling platform designed to help organizations plan events, coordinate volunteers, and keep participants aligned through a single, easy-to-use interface. It centralizes events, invitations, attendance tracking, and communications into one online agenda that replaces scattered emails, spreadsheets, and messaging tools. Users can create clear event calendars, share them publicly or privately with a simple link, and allow participants to register without creating an account, reducing friction and improving engagement. It supports role-based permissions so administrators can control who can view, contribute, or manage events while keeping information accessible across desktop and mobile. Joynit also provides automated reminders and notifications to reduce no-shows, along with attendance tracking that shows who is coming, undecided, or absent at a glance.Starting Price: Free -
48
LuxCal
LuxCal
On this site LuxSoft offers its free web based event calendar, called LuxCal, which will help you to organise and keep track of your appointments and events in an easy and user-friendly way from any internet PC, at home, in the office, on business trips or when on holiday. LuxCal is a free user-friendly lightweight web based event calendar. Its primary goals are to be more user-friendly, smaller and easier to maintain as compared to other web-based event calendars. LuxCal has all essential functions you may expect from a lightweight event calendar, designed to be as intuitive and user-friendly as possible. LuxCal is targeted at home use and small businesses. Most web-based event calendars found on the internet are too complicated, not user-friendly or not flexible enough. So, we made our own. Year view shows several rows of calendar months. The number of displayed rows and columns can be changed. -
49
lemcal
lempire
lemcal is the tool that allows you to schedule all your meetings on autopilot. It eliminates unnecessary back-and-forth and helps you book more meetings. By linking lemcal to your Microsoft or Google account, users will be able to book slots directly in your calendar without any friction. lemcal lets you import your Calendly schedules in seconds. It also generates a fully personalized booking page to help you attract leads, reduce no-shows, and build your personal or company brand. lemcal automatically tracks the performance of your meetings and syncs your leads with the tools you love, reducing the time it takes to schedule meetings. lemcal allows you to sync with lemlist, Google Calendar, Microsoft Teams, and Zoom (coming soon). Your personalized lemcal link opens to your fully customized booking page, where people can schedule meetings with you quickly and easily. Sign up now to reserve your unique link.Starting Price: Free -
50
Skiff
Skiff
Skiff is a private, end-to-end encrypted workspace with Mail, Calendar, Pages, and Drive products for completely secure communication and collaboration. All Skiff products are designed with security and privacy in mind. All apps are built with end-to-end encryption (E2EE), so you never have to share your personal information, sensitive data, or private keys with anyone else. At all times, only you can access the content of your emails. Generous free tier - Enjoy 10 GB of free storage for your email, attachments, documents, and notes. - Create up to 4 free email aliases to protect your identity. Open-source and audited - Skiff Mail is open-source, uses open-source cryptography, and undergoes external security audits. - You can access our whitepaper and code at skiff.com. No trackers or ads - Sign up and upgrade without sharing any personal information; use crypto payments in many different currencies to upgrade. - Your data is never collected, sold, or shared.
