The app is the functional ok. I have therefore to meiem Acer 510 but large Propleme. If I for example. mean, as a PDF file editing gespeichrten notes crashes the app regularly provide from locks up. I have to turn my tablet, take a minute of silence, and can then start the new app. I do not know to what that is, maybe get another update. What I also do not like that everything is in English and there is no translation.