I bought this app because I was a child the book by Gustav Schwab "The German heroic sagas"'ve read several times. I was shocked how many syntax errors and especially errors in words in all stories occurred. It just is not fun to read the stories, coarsest errors contained in the sentence structure. I then prepared a fax to send the developer of the app, unfortunately not the fax went through.
This app was supposed to be taken out of Amazon. I have the app erased from my memory tablet.