Has anybody built an app here with 10 million+ installs?

Answer 1

I doubt anybody here has an app with even 500k+ installs.
Take in mind this is a platform/forum for beginners. Everybody who can actually code something good uses stackexchange or similar.

Answer 2

It’s extremely doubtful. As an example, that would be the same ammount of people following the Sololearn profile: https://www.sololearn.com/Profile/1/?ref=app Thats a lot of people

Answer 3

Unlikely...