Its a diary
Operation is not as smooth as the interface is pleasant to look at. There is no simple way to make the keyboard disappear. Tapping the plus sign to go to a different date brings you to a scroll wheel where options are in German ("abbrechen" and "fertig"), with no way to change the language setting. Password entry is per diary within the app, not upon launching the app itself. Its nice to look at, but the design wastes space along the edges in order to create the book-like feel. However, it does function without crashing, looks nice, and will get the job done.
Aztai about
My Own Diary (Journal/Diary)