Our SDK with custom UI is the best solution for your mobile app, if you want to control the look and feel of the entire customer payment experience. You will have to create your own payment page UI to collect payment details and post the information to SDK to get it validated
Here, you will find more information on how to integrate the SDK with custom UI and the mandatory parameters that need to be sent to the SDK for various payment modes.
Our team will be more than happy to help you out. You can reach out to them at firstname.lastname@example.org