Sololearn revenue

Question

Hi, I am a huge fan of sololearn. I love the community and the content. But here is the catch. It's free. I mean literally free with no ads or bloat. So how does this app generate enough revenue to support its hosting and maintenance??

Answer 1

https://www.sololearn.com/Discuss/699783/?ref=app

Answer 2

https://www.sololearn.com/Discuss/158386/?ref=app

Answer 3

Thanks guys!!