Calendar Apps for Android

View 38 business solutions

Browse free open source Calendar apps and projects for Android below. Use the toggles on the left to filter open source Calendar apps by OS, license, language, programming language, and project status.

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  • 1
    Simple Calendar

    Simple Calendar

    A simple calendar with events, customizable widgets and no ads

    The most handy calendar out there. Manage your events and reminders easily. Simple Calendar Pro is a really flexible calendar with many event related options. It offers powerful repetition rules, optional CalDAV synchronization, ics file handling and much more. Top notch design ensures the best possible user experience. You will get familiar with it really quickly. You can create new events really quickly by predefining default values, or by duplicating existing events. There are many views you can choose from, depending on your preference. No matter if you want to see just 1 day or 1 year, this app supports it. Personalize your experience by changing any app color. You can even change the apps' icon color to make sure it matches your home screen. The Pro one already has many new features including time zone support, attendees and email type of reminders in CalDAV synced events, then many other bugfixes and stability improvements.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 2
    Etar Calendar

    Etar Calendar

    Android open source calendar

    Etar is an open-source material-designed calendar made for everyone.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 3
    CrunchyCalendar

    CrunchyCalendar

    A beautiful material calendar with endless scroll, range selection

    A beautiful material calendar with endless scroll, range selection, and a lot more. A light, powerful and easy-to-use Calendar Widget with a number of box features.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    React Native Calendars

    React Native Calendars

    Customizable React-Native calendar components

    This module includes various customizable React-Native calendar components. The package is both Android and iOS compatible. This project is compatible with Expo/CRNA (without ejecting), and the examples have been published on Expo. The solution is implemented in JavaScript so no native module linking is required. All parameters for components are optional. By default the month of current local date will be displayed. Parameters that require date types accept YYYY-MM-DD formatted date-strings, JavaScript date objects, calendar objects and UTC timestamps. Calendars can be localized by adding custom locales to LocaleConfig object. Keep in mind that different marking types are not compatible. You can use just one marking style for a calendar. If you need custom functionality not supported by current day component implementations you can pass your own custom day component to the calendar.
    Downloads: 3 This Week
    Last Update:
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  • 5
    openCRX - Enterprise Class CRM

    openCRX - Enterprise Class CRM

    professional CRM and groupware service, ready for the cloud

    openCRX moved to https://github.com/opencrx
    Downloads: 12 This Week
    Last Update:
    See Project
  • 6
    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: 35 This Week
    Last Update:
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  • 7
    Birday

    Birday

    A beautiful Kotlin app to remember birthdays and events

    This app was created to remember and manage events in a simple and effective way. The app contains some basic personalization options and an introduction, plus some new resources like animated vector drawables and the automatic dark/light theme. Support and updates are guaranteed. Birday allows you to import birthdays directly from your contacts, with a simple favorite system and a set of stats to discover.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    Joda-Time

    Joda-Time

    Replacement for the Java date and time classes prior to Java SE 8

    The standard date and time classes prior to Java SE 8 are poor. By tackling this problem head-on, Joda-Time became the de facto standard date and time library for Java prior to Java SE 8. Note that from Java SE 8 onwards, users are asked to migrate to java.time (JSR-310) - a core part of the JDK which replaces this project. The design allows for multiple calendar systems, while still providing a simple API. The “default” calendar is the ISO8601 standard which is used by many other standards. The Gregorian, Julian, Buddhist, Coptic, Ethiopic and Islamic calendar systems are also included. Supporting classes include time zone, duration, format and parsing. Joda-Time provides a quality replacement for the Java date and time classes. Joda-Time is the de facto standard date and time library for Java prior to Java SE 8. Users are now asked to migrate to java.time (JSR-310).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    Date Picker Calendar OpenOffice Calc

    Date Picker Calendar OpenOffice Calc

    Date Picker Calendar extension for OpenOffice Calc

    Date Picker Calendar (Latest version 2.60) Set a date in selected cell/cells. Creates a calendar push button in the selected cell and places the date in the cell next to the button. All functions are also in the menu: Tools - Add-Ons. It is possible to change certain settings via the 'Settings' button on the help screen. Calendar Help is located in the help menu of OpenOffice. Toolbar buttons: - Date: the date from the calendar will be inserted in the selected cell/cells. - Date <-Button: a calendar button is created in the selected cell, the date is inserted in the cell to the left of the button. - Button-> Date: a calendar button is created in the selected cell, the date is inserted in the cell to the right of the button.
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    Downloads: 22 This Week
    Last Update:
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  • 10
    Calendar
    Calendar、Task This is only a read-only mirror repository. Main repository: https://github.com/KangLin/Calendar
    Downloads: 18 This Week
    Last Update:
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  • 11

    Monthly Calendar

    Android calendar app focusing on a good view of a month.

    An Android calendar app focusing on a good view of a month, because I like the monthly view, and never use weekly view. So do you? Then this might be for you. For Android 4.0 and above. Legacy (Android 2.2+) version also available.
    Downloads: 1 This Week
    Last Update:
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  • 12
    Android Birthday Reminder
    This android app reminds you about upcoming birthdays. You can read and write the date of birth of all contacts in your address book. This project moved to GitHub: https://github.com/sealor/BirthdayReminder
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13

    CountDownWidget

    Android widget, counting days before certain events

    It is widget for counting days to certain events
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Time and project management for personal use.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    SALATI

    SALATI

    Prayer Times for iPhone and Android built-in Calendar

    Add Prayer Times to your built-in Calendar App. Many Countries and Cities available via https://salati.de SALATI provides prayer times as iCal File Format that can subscribed to your Calendar for all platforms supporting webcal and ics Format like Outlook, Apple Calendar, Google Calendar, iOS and Android. Free Service
    Downloads: 0 This Week
    Last Update:
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  • 16
    Secretarius is an Application for Android Plattform, it will allow to the user easily read and hear through voice commands, calendar entries, launch apps and much more.
    Downloads: 0 This Week
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  • 17
    asers

    asers

    Android Simplified Episode Remainder System

    The new release is there: 1.3. ASERS for Android Simplified Episode Remainder System is a system that manages your episodes remaindering. That helps you to be up-to-date with your series. ASERS is based on data from www.epguides.com.
    Downloads: 0 This Week
    Last Update:
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  • 18
    e7o.de CalDAV Project
    CalDAV sync for Android ---- Stopped working on it. Doesn't make any sense to spend more time on it; I recommend e.g. DAVdroid as an opensource and ready-to-use solution on clientside. ---- For code look at: https://github.com/e7o-de/android.caldav
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    minthcm

    minthcm

    Free, open-source Human Capital Management system

    minthcm.org is a free and open-source tool for Human Capital Management. Mint based on two popular, well-known business applications: SugarCRM Community Edition and SuiteCRM. This is why we often say that MintHCM is CRM reinvented. You all know how much goes into technological development of this type of business software… That's why we need your help. Thanks to the open code of both SugarCRM CE and SuiteCRM we were able to reintroduce some features, redesign other, and provide brand new system to the users. The code of MintHCM remains open so feel free to use it.
    Downloads: 0 This Week
    Last Update:
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  • 20
    react-native-modal-datetime-picker

    react-native-modal-datetime-picker

    A React-Native datetime-picker for Android and iOS

    A declarative cross-platform react-native date and time picker. This library exposes a cross-platform interface for showing the native date-picker and time-picker inside a modal, providing a unified user and developer experience.
    Downloads: 0 This Week
    Last Update:
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  • 21
    An app for Google's Android OS suporting students in their daily management of school related things. It is still in planig phase but will be started soon.
    Downloads: 0 This Week
    Last Update:
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  • 22
    minical

    minical

    Open-source Property Management System (PMS)

    miniCal is an open-source project contributed by various PMS vendors to collectively improve and maintain one PMS platform. Everyone is welcome to use miniCal for free, resell, or make a business out of this project.
    Downloads: 0 This Week
    Last Update:
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