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Flash Alert (Calls & SMS)

Blink the terminal when receiving a call, SMS or an application notification
New in version 3.0
- Revamped interface with Material 3 and edge-to-edge layout.
- Modernized settings menu.
- Added flash sequence configuration.
- Fixed scrolling in the App list and Settings.
- Optimization: released SoundDetector resources after use.
Flash Alert turns your camera flash into a powerful visual indicator whenever you receive a call, SMS/MMS, or notification from another app (WhatsApp, social media, etc.).

Key Features:
- Customizable flash alerts for calls, messages, and apps.
- Contact filtering: enable the flash only for your contacts.
- Battery-saver mode: smart deactivation if the phone is face down or if the screen is already on.
- Night mode and "Do Not Disturb" override options.
- Ambient noise detection (for compatible Android versions).

A lightweight app, privacy-friendly, and completely ad-free.

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 (23384362) suggested Added on Mar 01, 2026

    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
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • android.permission.FLASHLIGHT
    • query all packages
      Allows an app to see all installed packages.
    • read call log
      This app can read your call history.
    • 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.
    • read phone status and identity
      Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.
    • receive text messages (MMS)
      Allows the app to receive and process MMS messages. This means the app could monitor or delete messages sent to your device without showing them to you.
    • receive text messages (SMS)
      Allows the app to receive and process SMS messages. This means the app could monitor or delete messages sent to your device without showing them to you.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • fr.jnda.android.flashalert.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 2.5 MiB PGP Signature | Build Log

  • New in version 2.3.0
    2.3.0
    * Notification priority control added
    * Updated dependencies
  • Version 2.3.0 (18373967) - Added on Aug 03, 2024

    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
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • android.permission.FLASHLIGHT
    • query all packages
      Allows an app to see all installed packages.
    • read call log
      This app can read your call history.
    • 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.
    • read phone status and identity
      Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.
    • receive text messages (MMS)
      Allows the app to receive and process MMS messages. This means the app could monitor or delete messages sent to your device without showing them to you.
    • receive text messages (SMS)
      Allows the app to receive and process SMS messages. This means the app could monitor or delete messages sent to your device without showing them to you.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • fr.jnda.android.flashalert.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 1.3 MiB PGP Signature | Build Log

  • New in version 2.2.5
    2.2.5
    * Dependency updates
    * Fix for an issue related to flat terminal detection
    * Fix for an issue related to camera usage
  • Version 2.2.5 (16499441) - Added on Dec 27, 2023

    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
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • android.permission.FLASHLIGHT
    • query all packages
      Allows an app to see all installed packages.
    • read call log
      This app can read your call history.
    • 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.
    • read phone status and identity
      Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.
    • receive text messages (MMS)
      Allows the app to receive and process MMS messages. This means the app could monitor or delete messages sent to your device without showing them to you.
    • receive text messages (SMS)
      Allows the app to receive and process SMS messages. This means the app could monitor or delete messages sent to your device without showing them to you.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • fr.jnda.android.flashalert.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 3.2 MiB PGP Signature | Build Log