Since i joined sololearn, i have been using the app on my phone, never tried the web platform. I tried it today and found it to also be quite interesting. So i was wondering, what languages have been used to develop the front end and back end of the web version so as to make it fully responsive?
In the website, HTML CSS and JS is used and you can only learn on the website through your desktop (However, you can enable request desktop site option in mobile in your Chrome browser) and the sololearn app is made by using programming languages.
Other than these things, the pages are so responsive and user - friendly, that is the reason it looks so clean and comfortable to be used.