"Learn Vietnamese 50 languages" is a free app developed by 50LANGUAGES LLC, available on the Android platform. This app offers 100 lessons in Vietnamese language that provide a basic vocabulary of the language. The app is designed to teach Vietnamese to beginners, and it is an effective way to learn the language.

The app has 30 free lessons, and with no prior knowledge, users can learn Vietnamese and fluently speak short Vietnamese sentences in real-world situations. The app successfully combines audio and text for effective language learning. The 50 languages method corresponds to the Common European Framework levels A1 and A2, making it suitable for all types of schools and students.