I can pay $20 with paypal for a loyality app.
What I need:
The user can register with email or/and facebook.
The user can sign in with email or/and facebook.
I can generate codes.
These codes the user can use and can change for points
and these points can the user to redeem for coupon or product or service.
I use Intel XDK so need to works after I build the apk or ipa file.
Just show me what you need for this for example server and I will rent.
If you are intrested send me a comment.