Salam. It says the app can't be found. Is it because Android also sanctioned Iran and Iranian sofware designers? I once read about it. Anyway, such an app in Turkish would prove useful and be widely used. You can always share them on Turkish facebook groups for Learning Persian. Or I could share it for you. Is there any other working link? Thanks.

Edit.

OK. Found it. I just googled "mobiletin learn persian" and it is there. Thanks

Anyway, it would be better if you provided the app in Turkish.