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SimpleDay

Minimalist Markdown diary with app lock and your-own-cloud WebDAV sync.
New in version 1.4.0
Fixed: with App Lock on, switching to another app for a moment asked for your
fingerprint again and threw away entry text you had not saved yet. The lock now
waits (5 minutes by default, settable to 0, 1, 5 or 15 in Settings), and the
entry you were writing stays open behind the lock screen.

Faster: the "+" button no longer reads every entry in the diary to find today's,
so it opens straight away on a long-running diary.
SimpleDay is a beautiful, minimalist diary app built around one simple idea: one entry per day. No feeds, no clutter, no accounts to sign up for — just a calm space to write.

Write your thoughts, experiences, and memories in Markdown, and keep them private. Your entries stay on your device and, optionally, on a cloud server you control.

Features:

* Markdown support — formatting, lists, headers and more
* Live preview — toggle between edit and preview mode
* Minimalist, distraction-free interface
* One entry per day — a simple, focused approach to journaling
* Auto-save — never lose your thoughts
* App lock — protect the app with biometrics (fingerprint/Face ID) or your device PIN
* WebDAV sync — automatic backup to your own cloud (Nextcloud, ownCloud, etc.)
* Smart import — import existing entries from WebDAV on first launch
* Privacy first — no trackers, no ads, no analytics

Your data belongs to you. SimpleDay talks only to the WebDAV server you configure — nothing else.

SimpleDay is free software, licensed under the GNU GPLv3.

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 1.4.0 (8003) suggested Added on Aug 11, 2026

    x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • 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.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • control vibration
      Allows the app to control the vibrator.
    • de.mymiggi.simpleday.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 31 MiB PGP Signature | Build Log

  • Version 1.4.0 (8002) - Added on Aug 11, 2026

    arm64-v8a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • 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.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • control vibration
      Allows the app to control the vibrator.
    • de.mymiggi.simpleday.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 30 MiB PGP Signature | Build Log

  • Version 1.4.0 (8001) - Added on Aug 11, 2026

    armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • 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.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • control vibration
      Allows the app to control the vibrator.
    • de.mymiggi.simpleday.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 25 MiB PGP Signature | Build Log

  • New in version 1.3.1
    Fixed: the universal APK on GitHub shipped incomplete x86/x86_64 libraries, so it
    crashed on startup on those devices and in emulators. The build now packages only
    architectures it actually compiles, and an x86_64 build is published as well.
  • Version 1.3.1 (7003) - Added on Aug 03, 2026

    x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • 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.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • control vibration
      Allows the app to control the vibrator.
    • de.mymiggi.simpleday.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 31 MiB PGP Signature | Build Log

  • Version 1.3.1 (7002) - Added on Aug 03, 2026

    arm64-v8a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • 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.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • control vibration
      Allows the app to control the vibrator.
    • de.mymiggi.simpleday.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 30 MiB PGP Signature | Build Log

  • Version 1.3.1 (7001) - Added on Aug 03, 2026

    armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • 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.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • control vibration
      Allows the app to control the vibrator.
    • de.mymiggi.simpleday.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 25 MiB PGP Signature | Build Log