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RomanDigital

Digital Clock App and Widget with Roman Numeral Display
New in version 3.0.0
Added:
* Selection between monospace, sans-serif, and serif typeface to both app and widget settings.

Replaced:
* Exact-alarm-based widget updating with Service-based widget updating responsive to Android's time tick signal, thereby improving widget time display reliability and reducing battery consumption.

Fixed:
* various UI/UX issues.
The RomanDigital app provides a clock of unique style that can be used to repurpose an old device or to display time on a current model.

For more personal use, the RomanDigital widget makes a distinctive addition to a device's Home screen.

RomanDigital includes features expected in an ordinary digital clock, such as:
* Choice of 12 or 24 hour format
* Optional AM/PM indicator (uniquely integrated into the time display)
* Option to keep display on when app is in the foreground
* Display in either portrait or landscape

RomanDigital also includes:
* Independent configuration of app and widgets.
* Selectable app and widget time display typeface (monospace, sans-serif, or serif).
* Variable widget background opacity that can be set from 0% to 100% by tens.
* Selectable widget time zone.
* Selectable widget layouts to add a time zone label.
* Selectable app time display color.

For more detailed information including a FAQ list, please see the README.md file accompanying the RomanDigital source code.

Source code for RomanDigital is available at:
https://github.com/dfyockey/RomanDigital

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 3.0.0 (15) suggested Added on Mar 01, 2026

    This version requires Android 5.0 or newer.

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

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • 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.
    • net.diffengine.romandigitalclock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 8.9 MiB PGP Signature | Build Log

  • New in version 2.2.2
    Reverted
    * Fixed crashes and/or failure to restart widget on device boot by reverting code to version 2.2.0, with apologies to users effected.
  • Version 2.2.2 (14) - Added on Dec 15, 2025

    This version requires Android 5.0 or newer.

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

    Permissions
    • 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.
    • 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.
    • net.diffengine.romandigitalclock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 5.8 MiB PGP Signature | Build Log

  • New in version 2.2.1
    Fixed
    * Issue of the widget clock display not updating on some devices after unlocking the device's lock screen.
  • Version 2.2.1 (13) - Added on Dec 11, 2025

    This version requires Android 5.0 or newer.

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

    Permissions
    • 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.
    • 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.
    • net.diffengine.romandigitalclock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 5.8 MiB PGP Signature | Build Log