Is there is any way to integrate TON purchase to custom mobile app?

maybe some endpoints? or webview?

ya, it's interesting how the tonwhales.com does it

it's not an app and may be is there an easy way, haven't researched yet. If someone has some usefull links to read, would be glad 🙂

in case of react native i assume ton-x (tonhub) would be easy integration

Yes, that's react-native app)

thank you guys

ok so ton-x should work for you :)