turns out this is THE one

as we know, there are two OALDs in the store. this one is the one you should choose. Trust the original editors!
though glitches like low sound volume exists, though cannot jump from words to words at some places(i.e. at thesaurus section or example bank), these are definitely temporary errors, and should be solved soon enough.
but the real sound files,( words and sentences,both US or UK), the word origin, the thesaurus, extra example banks, these features are key and will not be found on the other app from other companies. Additionally, these word banks may probably be updated since it is Oxfords own brand.
Trust me, choose this one you will not regret.

problems for now
1 sound ( sometimes too low to hear, sometimes normal, obviously a system glitch)
2 cannot jump at thesaurus section etc
3 other minor things;
/switching from my view mode to normal mode: not smooth, positions dont match.
i.e. my view to the phrase part of the word, when switched to normal mode, it is not starting with the desired phrase part.

though not perfect, way better than other OALD apps. Trust the real one, original one.

gigi11192 about Oxford Advanced Learner’s Dictionary, v1.3