Duolingo English Test (DET)

Duolingo English Test (DET) is an education app by Duolingo with 500,000+ downloads (about 620K estimated). +20K installs in the last 7 days. Rated 2.9 from 1.2K ratings. Released Nov 25, 2025. Install growth, rank history, SDKs and ad networks.

From the store listing: “The Duolingo English Test (DET) mobile app provides a stable, secure test setup experience. It does not replace the desktop app for taking the test itself. Test takers will use the app to: • Submit their ID information • Scan their face and ID • Complete their room scan and ear scan • Set up their phone to record…”