MosaLingua

MosaLingua is a language-learning company based in Lyon, France, with 17 years in market and a 33-person team of language specialists. Its proprietary MosaLearning method, drawn from cognitive psychology and spaced-repetition research, focuses on the practical "20% of vocabulary you need 80% of the time" rather than exhaustive coverage. Eleven languages are taught — English (with TOEIC, TOEFL, professional and medical variants), Spanish, Italian, German, Portuguese, French, Russian, Mandarin, Japanese, Korean and Arabic — across iOS and Android apps and a web platform, with AI-assisted personalised coaching layered on top. The company reports more than 15 million users worldwide and a 4.5/5 average rating on the app stores, and serves both individual learners and B2B / French CPF (continuing-education) clients.