Show opening book contents - on Android?

[tapio]

Hi, there's many books around, but what are my options to look at their contents, on Android? The only possibility I know is not much - Droidfish, it shows the possible book moves and their probability, based on current position (and book randomization - why don't others have such a great option?).



Not even dreaming of a tree view, but eg something like in AcidApe chess (see attachment). Unfortunately its book explorer is hard linked to, I think, an online database.