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Sentinel Lens

Facial recognition surveillance with alerts
Sentinel Lens is a facial recognition surveillance app that uses your Android device's camera to record video in the background (with no live preview) and sends Telegram alerts when unauthorized individuals are detected, based on a configurable blacklist and whitelist.

Key Features

Background Recording

  • Discreet Capture: Record video silently in the background without any visible camera preview.

  • Saved Camera Footage: Automatically store recordings for later review.

  • Front or Back Camera: Choose either camera lens for optimal coverage.



Advanced Facial Recognition

  • Facial Recognition Surveillance: Analyze recorded frames to identify known and unknown faces.

  • Configurable Watchlist: Maintain custom blacklist and whitelist entries to control alerts.



Real-Time Alerts

  • Telegram Alert Integration: Send instant notifications via Telegram when a watchlist match is detected.



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  • app screenshot
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  • 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.

Download F-Droid
  • Version 1.0.2 (3) suggested Added on Oct 07, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 11 or newer.

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

    Permissions

    Download APK 94 MiB PGP Signature | Build Log

  • Version 1.0.1 (2) - Added on May 02, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 11 or newer.

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

    Permissions

    Download APK 96 MiB PGP Signature | Build Log

  • Version 1.0.0 (1) - Added on Apr 22, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 11 or newer.

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

    Permissions

    Download APK 96 MiB PGP Signature | Build Log

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