Schreiben B1 zur Prüfung is an app for learning the German language that is intended for all levels of learners, from beginners to advanced users. This is a learning tool that provides a comprehensive range of exercises to help you improve your German writing skills, grammar, and vocabulary. The app is divided into different sections, and each one provides a different kind of exercise. You can choose to do them in a random order, or you can do them in the order that they are presented to you. You can also set a specific level of difficulty for each exercise, so that you will learn at the pace that you prefer.