Brief schreiben is an Android app developed by SiySoft that offers various letters for different levels (A2-B1-B2...) for free. The app aims to help users improve their writing skills, which is an essential competence in many aspects of life, such as school, work, or personal communication. The app also includes a section for the German B1 certificate exam, specifically the writing part, where users can find helpful letters to prepare for the exam.

The app offers a wide range of letters that can assist users in writing emails. The app developers have collected learning content to help users improve their writing skills. The app is user-friendly and easy to navigate, and the letters are available for free. The app can be helpful for anyone who wants to improve their writing skills in German, whether they are preparing for an exam or just want to enhance their writing style.