It's common to hear people use हो with आप while speaking, however it is not grammatically correct, but it's acceptable in some regions and perhaps is used more than [आप - हैं].
You cry a lot
Duolingo : Nicely done!
you cry too much. Why this is not working? What is wrong in this sentence?
i mean.....duo's right
You cry too much should work too. It doesn't.
aap~ho is used when talking to some elderly/senior with high familiarity or closeness or frankness...
aap hai is used here to indicate general conversation between any two people with little familiarity and seniority gap is still maintained