Используйте приложение APKPure
Историческую версию C4U можно получить на Android
Это приложение содержит учебник C
C is a more powerful high level language using which more powerful programs can be developed.This app provides C tutorial and different C programs that are easily understandable. Now, any one can surf this app and learn C without carrying books .This app also helps to search the listed programs easily with search option.