# API for Mobile App with Alipay

- [Payment Request with OTT Pay SDK](/payment-api/in-app-alipay/payment-request-api.md): By Invoking of OTT Pay SDK,  it will activate Alipay wallet automatically, and payment result will returned with Call-back data.
- [Implementation with Android App SDK](/payment-api/in-app-alipay/android-dev-enviroment.md)
- [Implementation with iOS App SDK](/payment-api/in-app-alipay/ios-dev-environment.md): Support for iOS 9 or above