+ 2
in which programming language is sololearn written
2 Answers
+ 3
The Android app must have been made using Java. The iOS app using Swift and here is a link to a discussion about the languages the website may have been made with
https://www.sololearn.com/Discuss/1201075/?ref=app
+ 1
It depends on what you mean by SoloLearn, the app or the website?