Ear Tester I presume?
I dont know why the named this app Ear Trainer because this app does not teach you how to identify interval, chords, etc. All it does is TEST your ears. They should call it Ear Tester. Very deceitful. You will have to learn the skill of note, interval, chord, etc identification with something else then use this app to endlessly TEST yourself.
Ghjitgv467843565655460097 about
Ear Trainer, v4.0.1