# Fossify Calendar

> Open-source Android calendar with no ads, tracking or account

Fossify Calendar is a free, open-source calendar app for Android from the Fossify project, which publishes a set of everyday Android apps without ads or tracking. It keeps events, reminders and recurring schedules on the device, shows them in day, week, month, year and event-list views, and adds home screen widgets. The app does not request Android's Internet permission; calendars sync only through accounts or calendar providers already configured on the phone.

- **Category:** Calendar & Scheduling
- **Made by:** Fossify
- **Website:** https://www.fossify.org/apps/calendar/
- **Runs on:** Android
- **Facts last checked:** Oct 9, 2026

## Pricing

Fossify Calendar is free to use.

- **Pricing model:** Free
- **Free plan:** Free and open source under the GPL-3.0 license, with no ads, tracking or account. The project takes donations through GitHub Sponsors, Patreon, PayPal, Liberapay and Open Collective.
- **Free trial:** None listed.

| Plan | Price | What you get |
| --- | --- | --- |
| Fossify Calendar | $0 | The complete app, installed from Google Play or F-Droid, with no ads or in-app purchases. Donations are optional. |

Read from https://play.google.com/store/apps/details?id=org.fossify.calendar&hl=en_US&gl=US on Oct 9, 2026. Prices change, so confirm with Fossify Calendar before buying.

## Key features

- **Five calendar views:** Day, week, month, year and event-list views, with event filters to narrow what is shown and controls for color, theme and display.
- **Recurring events and reminders:** Events take times, durations, reminders and advanced repetition rules. Reminder sounds, looping audio and vibration can be customized.
- **Sync through device accounts:** Calendar data can sync through accounts or calendar providers set up on the device, such as Google Calendar, Outlook, Nextcloud or Exchange. Fossify runs no sync service of its own.
- **Import and export:** Calendars can be imported from and exported to files, which keeps the data portable and gives a way to back it up or move it to another app.
- **Holidays, birthdays and anniversaries:** Holidays can be imported, and birthdays and anniversaries can be drawn from the phone's contacts if contacts access is granted.
- **No Internet permission:** The app does not request Android's Internet permission, contains no advertising and sends no app data or usage records to Fossify.

## Good for

- Android users who want a calendar without ads, tracking or sign-up
- People who prefer open-source apps installed from F-Droid
- Keeping a private, local calendar that never leaves the phone

## Worth knowing

- Android only; the Fossify project lists Android as its sole platform.
- The app has no sync service or cloud account of its own. Syncing depends on accounts or calendar providers configured on the device.
- Development is funded by donations, and help comes through a public issue tracker and community channels.
- Google Play and F-Droid publish releases on their own schedules, so versions can differ between stores.

## Works with

Google Calendar, Outlook, Nextcloud, Exchange

**Tags:** Calendar, Open source, Works offline, Local-first

## Alternatives

- [Etar](https://toolgpa.com/tools/etar): Open-source Material Design calendar for Android. [Compare](https://toolgpa.com/compare/etar-vs-fossify-calendar)
- [Proton Calendar](https://toolgpa.com/tools/proton-calendar): End-to-end encrypted calendar from the maker of Proton Mail. [Compare](https://toolgpa.com/compare/fossify-calendar-vs-proton-calendar)
- [Tuta Calendar](https://toolgpa.com/tools/tuta-calendar): End-to-end encrypted calendar bundled with Tuta Mail. [Compare](https://toolgpa.com/compare/fossify-calendar-vs-tuta-calendar)
- [Google Calendar](https://toolgpa.com/tools/google-calendar): Online calendar from Google, free with a personal account. [Compare](https://toolgpa.com/compare/fossify-calendar-vs-google-calendar)
- [aCalendar](https://toolgpa.com/tools/acalendar): Android calendar with widgets, tasks and one-time upgrades. [Compare](https://toolgpa.com/compare/acalendar-vs-fossify-calendar)

## Sources

The prices, plans, platforms and features above were read from these pages on Oct 9, 2026:

- https://www.fossify.org/apps/calendar/
- https://www.fossify.org/about/
- https://www.fossify.org/donate/
- https://www.fossify.org/faq/
- https://www.fossify.org/policy/calendar.html
- https://github.com/FossifyOrg/Calendar
- https://raw.githubusercontent.com/FossifyOrg/Calendar/main/README.md
- https://play.google.com/store/apps/details?id=org.fossify.calendar&hl=en_US&gl=US

Page: https://toolgpa.com/tools/fossify-calendar
Listed by ToolGPA (toolgpa.com).