I don't think that's necessarily true. You *could* build your own in app wallet (I don't think thats a good idea either), or you can offload the whole payments thing to another service (why I built paypresto).
I don't think that's necessarily true. You *could* build your own in app wallet (I don't think thats a good idea either), or you can offload the whole payments thing to another service (why I built paypresto).