I'd like to do a Web App and I would like to avoid Firebase. So it's going to be Supabase for auth & database. I'm confident I can do OneSignal without Firebase with their APIs instead of the FlutterFlow integration.
But what about Stripe? I probably cannot use the FlutterFlow integration either but I will have to go with the Stripe APIs, right? Or is it easier to use RevenueCat for Stripe if I want to go without Firebase?