Securely plan, schedule, and set reminders with our private calendar app.
About this app
Tired of cluttered calendars and privacy concerns?
Fossify Calendar is here to change that. Your open-source powerhouse for managing life, designed with privacy as its core and packed with powerful features to keep you organized.
Here's what makes Fossify Calendar different:
🚫 AD-FREE AND PRIVATE: Your events remain yours. No ads, no tracking, no intrusive permissions.
⏰ FLEXIBLE AND CUSTOMIZABLE: Craft events precisely with times, durations, reminders, and advanced repetition rules.
🔄 SEAMLESS SYNCING: Sync effortlessly with Google Calendar, Outlook, Nextcloud, Exchange, and more.
🎨 PERSONALIZE YOUR PLANNER: Set custom sounds, looping audio streams, vibrations, and themes to match your preferences.
🌈 VIBRANT WIDGETS: Brighten your day with beautiful calendar widgets and themes for your home screen.
📅 EFFORTLESS DAY MANAGEMENT: Plan your day with ease, whether you're a busy professional or a family organizer.
🎉 IMPORT CELEBRATIONS: Never miss a birthday or anniversary! Easily import holidays and special dates.
🔍 FILTER VIEWS: Quickly find what you're looking for with event filters.
📆 MULTIPLE VIEWS: Switch between daily, weekly, monthly, yearly, and event views effortlessly.
✨ MATERIAL DESIGN ELEGANCE: Enjoy an intuitive and user-friendly interface with dynamic themes.
Plus, Fossify Calendar is open-source! Join the vibrant community on GitHub, contribute to the project, and make it uniquely yours.
Download Fossify Calendar now and experience the power of a private and customizable schedule.
Explore more Fossify apps: https://www.fossify.org Open-Source Code: https://www.github.com/FossifyOrg Join the community on Reddit: https://www.reddit.com/r/Fossify Connect on Telegram: https://t.me/Fossify
Licensed under GPL-3.0-only, by Fossify.
What's New in v1.10.3
Imported from the F-Droid repository index.
- Changed:
- • Updated translations
- Fixed:
- • Fixed crash when changing orientation
Version history
Feb 18, 2026 · 7.4 MB · Android API 26–36 · code 20
Imported from the F-Droid repository index.
- Changed:
- • Updated translations
- Fixed:
- • Fixed crash when changing orientation
SHA-256 2acbd47fa2abc6dd4846e406ed2fd60c5c01b8613158d10e012135923ee24894
Feb 6, 2026 · 8.3 MB · Android API 26–36 · code 19
Imported from the F-Droid repository index.
- Changed:
- • Updated holiday data
- • Updated translations
- Fixed:
- • Fixed last used default calendar preference for new events
SHA-256 8754e2adbe0368b99fa5e58d0d2e8a140d9d8763f87dcdde2b279ac94f04caca
Feb 2, 2026 · 8.3 MB · Android API 26–36 · code 17
Imported from the F-Droid repository index.
- Added:
- • Added support for custom fonts
- • Location suggestions in event editor using recently used locations
- Changed:
- • Unified the local and synchronized calendar pickers in event editor
- • Updated holiday data
SHA-256 26baf6c0e0c12f1febba16965f8c3d1b74104bacc82cc415891a9604defe2be3
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be org.fossify.calendar is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.10.2 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Fossify Calendar first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Fossify Calendar, and a listing is removed when the evidence for it stops holding up.
Get Fossify Calendar
Every source we list for org.fossify.calendar is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
2acbd47fa2abc6dd4846e406ed2fd60c5c01b8613158d10e012135923ee24894
Signing certificate
affdb124d3f4720c2f98dbca9eacba0514fba4306e20a2786c861c3c0d6ff292
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.