Do You Speak Grand Est is a free language learning application designed specifically for residents of the Grand Est region. The app offers a wide selection of languages including English, German, Spanish, Italian, Portuguese, Chinese, Alsatian, French, and sign language. Users must be physically located in Grand Est when creating an account. The application caters to all proficiency levels and features video-based exercises derived from films, series, news clips, and documentaries to enhance learning.

In addition to interactive video exercises, the app includes gamified visual dictionaries to bolster vocabulary acquisition. Users can improve their speaking and writing skills with AI assistance, and learn common expressions relevant to daily and professional life through videos co-produced with popular YouTubers. The app also provides regular progress assessments and preparation for official exams such as TOEIC, Linguaskill, and Bright.