Is it possible to use this application in pc

Answer 1

Yes using an emulator like BlueStack or Nox.
Also use the search bar before posting to avoid duplicate questions.

https://www.sololearn.com/Discuss/1943186/?ref=app

Answer 2

You can find most of the content on sololearn.com website too but there are some limitations there (you cannot comment on codes, and can't access user-made lessons and challenges)

Answer 3

If you download an emulator then yea