[DUPLICATE] which languages are used to create Sololearn platform ?

Question

which programming languages are used in Sololearn.

Answer 1

For the website you can use "Wappalyzer", an extension for Google Chrome that watches all tecnologies used for create the website.

For the app, maybe is used Java (?)

Answer 2

Java

Answer 3

I posted a breakdown of technologies I can detect with specific tools in this question:
- https://www.sololearn.com/Discuss/1201075/sololearn-made-by-which-language