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Unitto — calculator and unit converter

Calculate and convert anything
Calculator, converter and more.

Look for Calculator on your home screen after installing the app.

Calculator
• Home screen widget
• Copy, paste, save and share expression results
• Trigonometric functions
• Fractional output
• Optional Indian numbering system

Unit converter
• 601 units
• Currency converter (uses internet)
• Home screen widget
• Favorite units
• Organize unit groups
• Smart search algorithm

Date calculator
• Add and subtract dates
• Calculate difference
• Create events in calendar

Time converter
• Add to favorites
• Add labels to time zones

Body mass index
• Get instant and accurate results

Permissions and Data? Visit: https://github.com/sadellie/unitto/security/
Try web: https://sadellie.github.com/unitto/app

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 Titanium yellow (76) suggested Added on Mar 25, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, 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.
    • 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.
    • 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.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.sadellie.unitto.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 5.1 MiB PGP Signature | Build Log

  • Version Titanium yellow (72) - Added on Feb 23, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, 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.
    • 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.
    • 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.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.sadellie.unitto.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 5.1 MiB PGP Signature | Build Log

  • Version Titanium yellow (71) - Added on Feb 22, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, 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.
    • 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.
    • 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.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.sadellie.unitto.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 5.1 MiB PGP Signature | Build Log