are you on android?
if not, i'm sorry apple phones can't install apk files
Still applies
apk stands for ANDROID Pakage Kit so its only for android phones
and samsung isn't better than android but (kind of) equals
i dont think u understand it but SAMSUNG IS ANDROID, DUMMY
Oh, I didn't know that
Than the only problems I can think of is your phone being too old, that you have the wrong model of phone or The OS isn't android
