what’s the reason for denial

yes I’m in 99 percent right now

Your I765 was denied or your entire AOS? very rare for 765 denial. did you get an RFE at all?

what's the reason for denial? this app is only estimate not 100% accurate

This app gives you a probability of when you will have a decision. A decision could be an approval or a denial.

mine was denied too, and it says 100% approval. after the denial, I haven't received the notice by mail, I changed the address, I received an email saying “initial review”, and another email saying “card/ document production”. now on the case status, says “ a document was mailed to me”.