Our mission is to make language learning fun and effective for anyone who wants to learn, wherever they are. Our flashcard-based language learning app uses space repetition and real-life examples from videos and articles to help learners reach their language goals in an engaging and effective way.


Founded in 2020 by Petr Herálecký, our international team is based in the Czech Republic’s up-and-coming tech hub, Brno. 


The DuoCards app is available for download in the AppStore and GooglePlay. It is also accessible through a web browser or Chrome extension.

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DuoCards in the News

Best Language Learning Software for 2022 –

3 kroky, se kterými posunete své znalosti cizích jazyků o úroveň výš –

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