Hi @OferLobix, welcome to our community!
I’m afraid that at this time, the OAuth permissions flow is currently not supported on our monday apps framework on mobile.
If you’re curious to see what is supported on mobile re apps, check out this thread: Support for board views on mobile - #4 by BraveCarto.
I’ll move this to our “Feature Requests” section for now, and update once this has been released.
Thanks!