Open Source Mobile Operating Systems Productivity Software

Productivity Software for Mobile Operating Systems

Browse free open source Productivity software and projects for Mobile Operating Systems below. Use the toggles on the left to filter open source Productivity software by OS, license, language, programming language, and project status.

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  • 1
    Joplin

    Joplin

    Open source note taking and to-do app with synchronization

    Joplin is a free and open source note-taking and to-do application that can handle a large number of notes in Markdown format, organize them into notebooks and synchronize them with various cloud services. All notes can also be copied, tagged, searched and modified directly from the app or through your own text editor. Notes that are exported from Evernote can be imported into Joplin, be it formatted content, resources, complete metadata or plain Markdown files. When notes are synchronized with cloud services, notebooks, tags and other metadata can easily be moved, inspected or backed up as plain text files. Supported cloud services include Nextcloud, OneDrive, Dropbox and WebDAV. Joplin is available for Windows, Linux, macOS, iOS and Android, with three types: desktop, mobile and terminal. All of them have similar user interfaces and can be synchronized with each other.
    Downloads: 51 This Week
    Last Update:
    See Project
  • 2
    Obsidian

    Obsidian

    Community plugins list, theme list, and releases of Obsidian

    The Obsidian Releases repository provides the official distribution builds and installers for Obsidian, the popular markdown-based knowledge management and personal wiki application. Obsidian itself is a powerful, offline-first note-taking tool that helps users build interconnected knowledge graphs using markdown files stored locally on their devices, with plugins and community themes for extensibility. This repository houses versioned compiled binaries and packages for multiple platforms such as Windows, macOS, and Linux, enabling users to download stable or nightly builds directly without needing to build the app from source. By maintaining clear version history and downloadable artifacts, it makes it easy for individuals and organizations to audit, rollback, or pin specific Obsidian releases for workflows that depend on stability or particular plugin compatibility.
    Downloads: 47 This Week
    Last Update:
    See Project
  • 3
    Habitica

    Habitica

    A habit tracker app which treats your goals like a Role Playing Game

    Get motivated to achieve your goals. Now is the time to have fun while completing your tasks! Join more than 4 million Habiticans and improve your life one task at a time. Habitica is a free habit building and productivity app that takes your real life as a game. With in-game rewards and punishments to motivate you and a strong social network to inspire you, Habitica can help you achieve your goals to be healthy, hardworking, and happy. Stay responsible by following and maintaining your Habits, Daily Tasks and To-Do Tasks with habitica's mobile apps and the website, both easy to use. Cross off tasks to level up your Avatar, and unlock in-game features like battle armor, mysterious pets, magical abilities, and even missions! Fight monsters with other Habitica users! Use the Gold you earn to buy in-game or custom rewards, like watching an episode of your favorite TV series.
    Downloads: 16 This Week
    Last Update:
    See Project
  • 4
    Zulip

    Zulip

    Powerful open source team chat application

    Zulip is a powerful open source group chat application that combines the immediacy of real-time chat with the productivity benefits of a threaded conversation model. Zulip’s unique threading model allows users to easily catch up on important conversations, helping to save time and increase productivity.
    Downloads: 5 This Week
    Last Update:
    See Project
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  • 5
    Super Productivity

    Super Productivity

    Super Productivity is an advanced todo list app

    Being clear and organized in your work doesnβ€˜t just make your life easier but also communication with your partners and clients. The App lets you create time sheets and work summaries effortlessly to track and document your work. Share it right away to get your head free so you can quickly focus on your next task. Never miss the important updates on any of your Jira tickets. With our Jira and Github integration, you will be notified about ticket changes without having to check Jira or your emails every 10 minutes. Just auto import all tasks assigned to you, plan the details locally and submit worklogs with just a single click. Working productively means working smarter rather than harder to drain yourself out. Super Productivity offers a variety of optional features to support you to become better at this. A pomdoro timer helps you to focus if needed. A break reminder, tells you when to step away and an anti procrastination page helps to waste less of your time.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    Anytype Kotlin

    Anytype Kotlin

    Official Anytype client for Android

    anytype-kotlin is the core engine of Anytype, a local-first, peer-to-peer knowledge graph app designed for self-sovereign digital organization. The Kotlin-based backend handles data storage, synchronization, and cryptographic identity management, empowering users to create and share structured documents, databases, and networks of linked information without relying on centralized infrastructure. It offers full offline support, encrypted syncing, and identity verification through the Anytype protocol. The engine is built to be portable, efficient, and interoperable with other components in the Anytype ecosystem.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 7
    Loop Habit Tracker

    Loop Habit Tracker

    Mobile app for creating and maintaining long-term positive habits

    Loop is a mobile app that helps you create and maintain good habits, allowing you to achieve your long-term goals. Detailed graphs and statistics show you how your habits improved over time. It is completely ad-free and open source. Beautiful, minimalistic and lightweight interface. Loop has an elegant and minimalistic interface that is very easy to use, even for first-time users. Highly optimized for speed, the app works well even on older phones. Habit score. Loop has an advanced formula for calculating the strength of your habits. Every repetition makes your habit stronger and every missed day makes it weaker. A few missed days after a long streak, however, will not completely destroy your progress, unlike many other don't-break-the-chain apps. Flexible schedules. In addition to daily habits, Loop supports habits with more complex schedules, such as 3 times per week or every other day.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    My Brain

    My Brain

    Open-source, All-in-one productivity app for Tasks, Notes, Calendar

    My Brain is an Open source, All-in-one productivity app for Tasks, Notes, Calendars, Diary, and Bookmarks. Private with no data collection and no internet permission at all. Create tasks with priority, sub-tasks, descriptions, and due dates and reminders. Create Notes that support markdown which enables you to use Headers, lists, links, etc. Record your mood daily and view your mood summary with beautiful graphs.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    Simplenote for Android

    Simplenote for Android

    Simplenote for Android

    Simplenote for Android is the open-source Android client for Simplenote, a lightweight, fast, and free note-taking app that syncs text notes, to-dos, and ideas across all devices automatically. The Android version provides a clean and minimalist interface optimized for phones and tablets where users can quickly jot down thoughts, organize them with searchable tags, and have everything backed up and synchronized via the Simplenote service. Users can also create checklists, pin important notes for quick access, and instantly find content using powerful keyword search tools. The app supports Markdown formatting, letting users add structured text like headers, lists, and links with easy previewing. Because it ties into the same Simplenote account used on iOS, macOS, web, or desktop apps, content stays consistent and accessible regardless of the platform you use.
    Downloads: 3 This Week
    Last Update:
    See Project
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  • 10
    Medito App

    Medito App

    The Medito app is a 100% free meditation app built with flutter

    Meditation can positively transform people's lives. We believe no one should have to pay for it. We are the Medito Foundation, and we've built the Medito App for people who have never meditated before or want to deepen their meditation practice. The app is free, forever: no ads, no spam, no need to sign up or pay. Medito App is a flutter project available on Android and iOS maintained by the Medito Foundation and its community. With our app’s holistic approach, you can find guided and non-guided meditations from Medito Foundation and various other organizations such as UCLA; all of which are based on ancient as well as recent meditation techniques. Just spend a few minutes per day on the app using the various features and discover the life-changing benefits, positivity, and transformative effects of meditation in your life.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Omni-Notes

    Omni-Notes

    Free and powerful note-taking application

    Omni-Notes is a powerful open-source note-taking application for Android designed to be both smart and simple. It has a clean and simple Material Design interface and is packed with plenty of smart features. These include image, audio and generic file attachment, a To-do list, Google Now integration, numerous widgets and so much more. Omni-Notes takes note-taking to a whole new level, making it more convenient and integrated. It's an ideal note-taking application particularly for old Android phones without such apps, giving users an updated look and experience when taking down notes.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    Simple Notes

    Simple Notes

    A simple textfield for adding quick notes without ads

    If you need to take a quick note to make a shopping list, a reminder for an address, or a startup idea, then look no further as this is the simple organizer tool you've been looking for Simple Notes. To-do list organizer and planner, the best note-taking apps, and sticky notes are free for Android mobile phones. No complicated setup steps are needed, just tap the screen and type in what you came for and create notes, quick lists, checklists, or backup for any idea. With your simple personal notebook, you can remember anything fast. A shopping list for groceries, a to-do list for your daily agenda, and easier note-taking to make setting up meetings a walk in the park. Simple notes planner is a quick, simple-to-use organizer and remarkable note-taking colorful widget and it will serve as an invaluable tool helping you to remember necessary pieces of information or shopping lists in the mall.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    Lifeograph

    Lifeograph

    Advanced personal note taking application

    Lifeograph is a diary program to take personal notes on life. It has all essential functionality expected in a diary program and strives to have a clean and streamlined user interface.
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    Downloads: 34 This Week
    Last Update:
    See Project
  • 14
    FSNotes

    FSNotes

    Notes manager for macOS/iOS

    FSNotes is a modern notes manager for macOS and iOS. App respects open formats like GitHub Flavored Markdown, so you can easily write documents on iPhone and MacBook. It's simple and blazing fast! Sync via iCloud Drive. 3D Touch and configurable keyboard. TextBundle and EncryptedTextBundle containers. Pinned notes are kept in sync with the desktop app. Dynamic fonts (iOS 11+). Night mode by location or screen brightness. Sharing extension. Encrypted note support.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    TrueTime

    TrueTime

    Android NTP time library. Get the true current time

    A library that provides accurate, real-world time to Android applications, synchronizing with network time protocols to ensure precise timekeeping.
    Downloads: 1 This Week
    Last Update:
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  • 16
    zen

    zen

    Minimal meditation app

    Mobile app for meditation. You can set min and max time, and when you start meditating the app randomly picks a time for you between those values. Set min and max time. Each session of meditation time is picked between those values. Satisfying jingle when completing a meditation. Doesn't keep ringing so you can continue meditation if you want. See basic stats: How many sessions, total time meditated, and your average session length. Open-source and lightweight. All data is stored with Hive, in multiple different boxes. Check hive_helper.dart for more info. All pictures are from unDraw or many pixels. All of the unDraw pictures are modified. You can find the original .svg files and .psd files inside /the assets-original directory. Finished edited pictures are inside /the assets directory.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Mindwtr

    Mindwtr

    A complete Getting Things Done (GTD) productivity system for desktop a

    Mindwtr: The Privacy-First GTD System Mindwtr is a Getting Things Done (GTD) productivity tool designed for "Mind Like Water." It runs completely offlineβ€”no accounts, no tracking, and no subscriptions. The Core GTD Workflow Capture: Instantly offload thoughts to your Inbox. Clarify: Process tasks rapidly with the built-in "2-Minute Rule" timer. Organize: Sort tasks by Contexts (@work, @home), Areas, and Projects. Reflect: Keep your system trustworthy with a guided Weekly Review. Engage: Filter Next Actions by energy level or time available. Powerful Features Local-First: Your data lives on your device (SQLite). You own it 100%. Flexible Sync: Sync privately via File System (Syncthing, iCloud) or WebDAV (Nextcloud). Focus View: A unified dashboard for your calendar events and next actions. Kanban Boards: Visualize projects with drag-and-drop columns. Stop managing your data. Start getting things done.
    Downloads: 16 This Week
    Last Update:
    See Project
  • 18
    Intention Repeater MAX

    Intention Repeater MAX

    Repeating your Intentions to aid in manifestation

    Please see the README.txt. The ServitorConnect 4443 and Python Daemon and Intention Repeater Android are better because repeating once-per-hour is better than millions of times per second (or even 3Hz). The archive bundle includes binaries and source code for: MAX and Simple Intention Repeaters CUDA version for Windows/Linux Memory Frequency Generator Multi-Format to WAV Repeater Android app Sourcecode File/Image Writers Nesting Files Creator Prayer Wheel Spiritual Chat Tarot WiFi Broadcast Whether you're seeking to manifest abundance, enhance your spiritual journey, or promote overall well-being, Intention Repeater MAX empowers you to harness the incredible strength of intention repetition. Compatible with Windows, macOS, and Linux. Download now and experience the life-changing benefits for yourself! πŸ™Œ
    Downloads: 8 This Week
    Last Update:
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  • 19
    UnifontEX

    UnifontEX

    An extended fork of GNU Unifont with a focus on high compatibility.

    An extended fork of GNU Unifont with a focus on high compatibility. Now final!
    Downloads: 4 This Week
    Last Update:
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  • 20
    HadisKu

    HadisKu

    HadisKu - Aplikasi Kitab Hadis 14 Imam | hadith / hadist

    Di era digital ini, akses terhadap ilmu pengetahuan Islam menjadi semakin penting dan mudah dijangkau. HadisKu hadir sebagai solusi komprehensif yang menghadirkan koleksi hadis autentik dari 14 Imam terkemuka dalam satu platform yang dapat diakses di mana pun dan kapan pun. πŸ“š Koleksi Hadis Lengkap dari 14 Imam HadisKu menghadirkan perpustakaan digital yang kaya dengan koleksi hadis dari para ulama terkemuka: - Hadis Imam Bukhari - Hadis Imam Muslim - Hadis Sunan Tirmidzi - Hadis Sunan An Nasai - Hadis Sunan Abu Dawud - Hadis Sunan Ibnu Majjah - Hadis Sunan Ad Darimi - Hadis Musnad Ahmad - Hadis Muwatha Malik - Hadis Sunan Daruquthni - Hadis Shahih Ibnu Khuzaimah - Hadis Shahih Ibnu Hibban - Hadis Al Musdatrak - Hadis Musnad Syafii Aplikasi HadisKu tersedia di berbagai Platform OS, diantaranya: Android, Linux, Windows - Playstore : https://play.google.com/store/apps/details?id=com.flagodna.hadisku - Desktop : https://github.com/Flagodna-Developer/hadisku/releases
    Downloads: 3 This Week
    Last Update:
    See Project
  • 21
    StoryPad - Timeline Diary

    StoryPad - Timeline Diary

    Your diary, notes, thoughts, stories, or novels on a simple timeline.

    StoryPad lets you write and capture everything - notes, thoughts, emotions, workouts, travels, stories, novels, or poems - on a single continuous timeline. No folders. No tabs. Just your life, beautifully organized. Your story flows like life does: naturally.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 22
    NoteSpark

    NoteSpark

    NoteSpark is a fast, offline-first notes and ideas app

    NoteSpark is a fast, offline-first notes and ideas app built with Expo, React Native, and TypeScript with markdown support out of the box Speed, simplicity, and privacy β€” no internet required, no accounts, no ads. Just pure note-taking joy.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    pinvault-pro-extension

    pinvault-pro-extension

    AI-powered browser extension for bulk downloading Pinterest images wit

    PinVault Pro is a professional-grade browser extension that revolutionizes Pinterest image downloading with AI-powered technology. The extension provides intelligent bulk selection, auto-scroll functionality, and maintains HD quality downloads while respecting Pinterest's terms of service. 🎯 Core Features: β€’ Visual checkbox overlays on Pinterest images for intuitive selection β€’ AI-powered auto-scroll with smart content detection β€’ Bulk download capabilities with real-time progress tracking β€’ HD quality preservation in original resolution β€’ Modern glassmorphism interface design β€’ Privacy-focused architecture with no external servers β€’ Cross-browser compatibility (Firefox, Chrome, Edge, Opera) β€’ Real-time synchronization between popup and sidebar interfaces 🌍 Universal Browser Support: β€’ Firefox: Official Mozilla Add-ons Store approval (61.4 KB package) β€’ Chrome/Edge: Manifest V3 compatible (60.0 KB package) β€’ Opera: Manifest V3 compatible (60.3 KB package)
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24

    Focus Forge

    A web browser to forge focus and increase productivity.

    A web browser to forge focus and increase productivity.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    MultiDEILD

    MultiDEILD

    The ultimate alarm for lucid dreams induction

    MultiDEILD is an Android application that can aid you in having lucid dreams by using special alarms and light flashes. MultiDEILD is also available as a Windows scriptable software. It can turn on your pc, ring alarms, and put your pc in sleep mode again.
    Downloads: 1 This Week
    Last Update:
    See Project
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