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Calendula

A modern Material 3 Expressive calendar for Android.
New in version 2.19.2
Fixed
• Tapping an event in month view now opens the event instead of its day.
• An edit shows straight away when you re-open the event.
• The month widget's arrows no longer die after a few taps — an oversized update was killing the launcher's widget host.
• Jump-to-today in seamless weeks lands on the current week, and day/week view no longer run flush against the right edge.

Changed
• A meeting you declined is struck through everywhere and no longer reminds you.
Calendula is a modern, open-source calendar app for Android. It works
directly on the system calendar provider, so any source synced to your
device — Nextcloud via DAVx5, Google, local, WebCal subscriptions — shows up
automatically, and changes you make sync back the same way.

Create, edit and delete events, including recurring events with scoped
changes (only this event / this and all following / the whole series) and a
simple repeat picker. Calendula also delivers your event reminders as
notifications — tap one and you're on the event.

Optionally, show your contacts' birthdays, anniversaries and other special
dates in your calendar. You turn this on yourself; contacts are read only on
your device, are never uploaded, and are never changed — Calendula only
mirrors the dates into local calendars you fully control.

The differentiator is the design: real Material 3 Expressive throughout,
with dynamic color, expressive motion, and expressive shapes.

Privacy: zero telemetry, no analytics, no network access — your data never
leaves the device.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 2.19.2 (21902) suggested Added on Aug 21, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 10 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run foreground service
      Allows the app to make use of foreground services.
    • show notifications
      Allows the app to show notifications
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • read your contacts
      Allows the app to read data about your contacts stored on your phone. Apps will also have access to the accounts on your phone that have created contacts. This may include accounts created by apps you have installed. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • Schedule precisely timed actions
      This app can schedule work to happen at a desired time in the future. This also means that the app can run when you're not actively using the device.
    • Schedule alarms or event reminders
      This app can schedule actions like alarms and reminders to notify you at a desired time in the future.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • add or modify calendar events and send email to guests without owners' knowledge
      This app can add, remove, or change calendar events on your phone. This app can send messages that may appear to come from calendar owners, or change events without notifying their owners.
    • de.jeanlucmakiola.calendula.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 6.6 MiB PGP Signature | Build Log

  • New in version 2.19.1
    Added
    • Drag to reschedule can now be turned off: Settings → Views → “Drag to reschedule”. It stays on by default; switched off, events can no longer be picked up in the month, week or day view.
    • Calendula now speaks Brazilian Portuguese, thanks to a community translation. Pick it under Settings → Language.
  • Version 2.19.1 (21901) - Added on Aug 13, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 10 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run foreground service
      Allows the app to make use of foreground services.
    • show notifications
      Allows the app to show notifications
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • read your contacts
      Allows the app to read data about your contacts stored on your phone. Apps will also have access to the accounts on your phone that have created contacts. This may include accounts created by apps you have installed. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • Schedule precisely timed actions
      This app can schedule work to happen at a desired time in the future. This also means that the app can run when you're not actively using the device.
    • Schedule alarms or event reminders
      This app can schedule actions like alarms and reminders to notify you at a desired time in the future.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • add or modify calendar events and send email to guests without owners' knowledge
      This app can add, remove, or change calendar events on your phone. This app can send messages that may appear to come from calendar owners, or change events without notifying their owners.
    • de.jeanlucmakiola.calendula.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 6.5 MiB PGP Signature | Build Log

  • New in version 2.19.0
    New
    • Drag an event to reschedule it — press and hold it in month, week or day view and drop it on another time or day. Recurring events ask what the move applies to.
    • Delete several search results at once: long-press a hit to start selecting, then delete them in one action.

    Changed
    • First launch is now a short wizard. It can also set up automatic backup and let you pick the view Calendula opens on, both with previews.
  • Version 2.19.0 (21900) - Added on Aug 12, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 10 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run foreground service
      Allows the app to make use of foreground services.
    • show notifications
      Allows the app to show notifications
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • read your contacts
      Allows the app to read data about your contacts stored on your phone. Apps will also have access to the accounts on your phone that have created contacts. This may include accounts created by apps you have installed. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • Schedule precisely timed actions
      This app can schedule work to happen at a desired time in the future. This also means that the app can run when you're not actively using the device.
    • Schedule alarms or event reminders
      This app can schedule actions like alarms and reminders to notify you at a desired time in the future.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • add or modify calendar events and send email to guests without owners' knowledge
      This app can add, remove, or change calendar events on your phone. This app can send messages that may appear to come from calendar owners, or change events without notifying their owners.
    • de.jeanlucmakiola.calendula.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 6.5 MiB PGP Signature | Build Log