Kim Kardashian may be a selfie addict, but you've got to give it to her for her art of making money. She's on the cover of Forbes this month, not for some publicity stunt, but because she's made a lot of money from her app. Some $45 million to be exact!

Kim has a few mobile apps now, including Kimoji and Kim Kardashian: Hollywood. But it is the latter that brings in the most money for her!

Forbes says that the app has been downloaded 45 million times and generated $160 million in revenue since its June 2014 release.

And Forbes estimates that Kim has pocketed $45 million from it.

Impressive indeed.