Reading and writing
App: ABC Deutsch
German for beginners
App: A1-Deutsch
Android PlayStore A1 Apple AppStore A1
App: A2-Deutsch
Android PlayStore A2 Apple PlayStore A2
App: A2-B1-Beruf (occupation)
German for advanced learners
Further information
Recommendation: Apps from the adult education center (Volkshochschule - VHS). There is an app for every level.
VHS ABC-Deutsch (learn to read and write)
Beginners: A1, A2, A2-B1
Advanced: B1, B2