LETHE / catalog
LETHE / android

Scan your own phone.

Lethe reads every installed app's code, on your device, and shows you the tracker SDKs compiled inside — advertising, analytics, and profiling most apps never mention. The analysis runs on your phone. Your list of apps is never stored on our servers, and never sold.

Get it on Google Play

Android 8.0+ · free · installs and updates through the Play Store

See it run

How it works

  1. 1

    Install from Google Play

    Tap Get it on Google Play above, then Install. Updates arrive automatically.

  2. 2

    Scan this device

    Launch Lethe and tap Scan this device. The first scan reads every app and takes a few minutes — leave it open while it works.

  3. 3

    Read the results

    Every app gets a declared-vs-embedded breakdown: the tracker SDKs actually compiled inside, next to what the listing admits to.

What leaves your phone

The code analysis happens entirely on-device. Only the names of matched trackers and declared permissions are sent to be scored — never your list of installed apps, never the app files themselves. Nothing is stored after scoring.

Curious what it looks at first? Browse the public catalog — the same declared-vs-embedded analysis, on the web.