We produce Total Wallet for blockchain 
You can chech the samples.

Link-
https://play.google.com/store/apps/details?id=com.mobicoin.wallet&hl=en
https://apps.apple.com/kr/app/mobi-coins-wallet/id1448335257
https://www.mobicoins.agency/services

Please e-mail me for the description of what you want to produce.
* Wallet Production Consultation Costs
* Coin payment function
* Exchange function
* Shopping mall function
* Recommended function

It's the price for five times of e-mail consultations.