Connect dApp with mobile wallet

Hello everyone, I am beginner of Aptos. We try to develop a Mobile (Android and iOS) app of Aptos Wallet.

I tried to search for any standard protocol for connecting Aptos dApp with another mobile app (as WalletConnect). I found that some topics are discussing in progress.

Could I know if there are any other resources for connecting Aptos dApp with a mobile wallet? Thanks.