It is easy. Just follow these steps :
1/ Download "nox player"
2/ Install it, open it and sign in with google play
3/ download sololearn on play store
4/ open sololearn and enjoy.
I am presently using it
You can choose to go to the Solo Learn page.
Then use the "More Tools" option that comes with the google browser.
Finally select "Create Shortcuts".
So you can generate a shortcut on your desktop.