Kindly pls contact us, we have 200+engineers for blockchain project.
whats kinda wallet need pls send me the detail by email
ryen139@163.comDo not contact this guy OP. His 200 engineers will probably be doing their first coding project after years of cow milking experience.
You're better of using your own wallets and a service provider that is famous in your country for fiat transactions. Fiat transactions could be of 3rd party but the wallets have to be coded and managed by your own company so people feel safe using your exchange.