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Neruppu

Offline-first physical security monitoring using device sensors
New in version 26.28
v2026.06.30 - Production release
• Camera motion detection with CameraX
• Microphone audio monitoring with automatic recording
• Accelerometer movement detection
• Ambient light change detection
• Matrix remote alert integration
• Foreground service for continuous monitoring
Neruppu is a modern, offline-first physical security monitoring app that uses your device's sensors to detect and record security events.

Features:
• Camera motion detection (front and back cameras)
• Microphone audio monitoring with automatic recording on noise bursts
• Accelerometer movement/vibration detection
• Ambient light change detection
• Optional Matrix remote alerts
• All data stored locally - no cloud required

The app runs as a foreground service ensuring continuous monitoring while providing optional encrypted remote notifications via Matrix when security events are detected.

Built with privacy and security in mind - all logs and media remain on your device unless you explicitly configure remote alerts.
  • app screenshot
  • app screenshot
  • app screenshot

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.

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  • Version 26.28 (9) suggested Added on Aug 03, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 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.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "camera"
      Allows the app to make use of foreground services with the type "camera"
    • run foreground service with the type "microphone"
      Allows the app to make use of foreground services with the type "microphone"
    • 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
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • 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.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • org.havenapp.neruppu.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 4.5 MiB PGP Signature | Build Log

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