On my turbotax app it says my tax return was accepted on 2/10/2021 but on the IRS where's my refund it says still processing. Why? Also why has it been more than 21 days?

Me too. And I can’t get any answers. 

me freaking too! I called the irs they said they have NO record of my federal tax return, even tho they accepted it on the 10th of February as well.... I cant even use where’s my refund bc it says wrong info put in and I know I put the right info in! My state was offset and they took $71, that was my whole state I got back and I only owed $100 the state offset said they didn’t mess with my federal and my transcripts don’t even show my 2020 filing either... I’d LOVE some answers from someone instead of the run around. The irs chick said have TurboTax resubmit our federal, but when I told TurboTax the lady said I didn’t need too bc it was accepted! Like what’s really going on right now? Bc I need my money bad right now!!

you are confusing ACCEPTED and APPROVED.

your return has to be processed to be approved.