Duolingo: Learn Languages Free

We retested this app on 19.02.2019. The app still exhibits the behaviour documented below.

Disclaimer: Additionally the tested app may still share data with other third parties. This is outside the scope of this work.

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Description

DuoLingo is an app to assist in learning a foreign language

From the Google Play Store page:

"Learn Spanish, French, German, Italian, Russian, Portuguese, Turkish, Dutch, Irish, Danish, Swedish, Ukrainian, Esperanto, Polish, Greek, Hungarian, Norwegian, Hebrew, Welsh and English."

Date Tested
01/12/2018
App Version
3.107.7
Facebook SDK Version
4.26.0
Number of App Installs (according to Google Play Store at time of analysis)
100,000,000+
Opt out of Ads Personalisation (Google Settings)
Not Enabled (Default Setting)