AMBER ROSE Haters Can Hate ... MY APP JUST MADE ME MILLIONS!!

Amber Rose can drown out all the critics of her new emoji app by stuffing $100 bills in her ears ... 'cause she just made $4 MILLION off the damn thing. 

Sources close to Amber say she got a fat check just for signing on with the company that developed the app. That's not all ... we're told the MuvaMoji raked in over $2 million on its opening day, and she's getting a cut of that too.

As for haters accusing her of ripping off emojis from Kim Kardashian's app ... Amber's adamant there was no attempt to imitate or copy.

We're told she's confident the app perfectly reps her personality -- from the big booties to the stripper pole.