Want to add offerwall, wallet and earning history in my app

Hi friends, I’m a newbie developer and know few things only about Kodular. I’m making my offerwall app where I will add offerwalls from various network. But I don’t know how to add in app wallet and wallet history and also want to add the system that whenever my user completes offer they will automatically get their points in the wallet of their app. Please help me out.

I want to make app like this :