It's called Sktchy and you can search for 'Inspiration' which are other users who post selfies or something like that. You draw that person or whatever comes to mind due to the inspiration and post it.

You can post selfies and inspire others and it's super cool

I drew these two so far

Inspired by this dude

He's doing very well with the whole face thing

Inspired by this chick

The lips were very hard to draw for some reason

And I haven't drawn anything else

Toodles my Lovely Space Nerds