B1-Deutsch is a free mobile app developed by Deutscher Volkshochschul-Verband, aimed at helping people learn German at B1 level. The app provides access to all the functions of the B1 German Course offline on your smartphone. With this app, you can learn German for free, at your own pace and time.

The app offers 12 lessons with a range of exercises that help you practice reading, writing, listening, and speaking German. It also provides support from tutors, making it easier for users to learn and understand the language. The menu navigation and usage instructions are available in 20 languages, making it accessible to a wide range of users.

One of the best things about B1-Deutsch is that it is free and can be used offline. The app is recognized by the BAMF as a teaching aid for courses, making it a reliable tool for anyone who wants to learn German. Overall, B1-Deutsch is a great app for anyone looking to learn German at their own pace and time, and we highly recommend it.