Neruppu
Offline-first physical security monitoring using device sensors
Thamizharasan Munusamy Security
Screenshots
Description
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.
What’s new (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
Versions
Permissions
What the app asks the system for. Android only grants sensitive access after you confirm it.
- CameraTake photos and videos.
- MicrophoneRecord audio.
- Internet accessSend and receive data over the internet.
- Write storageCreate and change files on the device storage.
- Read storageRead files on the device storage.
- NotificationsShow notifications.
- Foreground serviceKeep running in the background, visible in the status bar.
- FOREGROUND_SERVICE_MICROPHONE
Show 5 more permissions
- FOREGROUND_SERVICE_CAMERA
- Prevent sleepingKeep the device from going to sleep.
- Network stateCheck whether and how the device is connected.
- Run at startupStart automatically after the device is switched on.
- neruppu.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
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