After performed an exchange transaction,I go to History tab to check the detail (transaction is pending), it shows that I will receive an amount A but when the transaction is changed to success, I ...

The "Received Amount" displayed in Pending Transaction on the wallet is only estimation. As users clicking on "exchange" button, transactions are submitted to blockchain. However, by this time, the amount of exchanged assets might increase or decrease and, thus, result in variation in their actual received amount. Therefore , Received Amount in Successful Transaction is the correct amount that users will receive.

In addition, we would like to emphasise that Infinito will never scam or steal from any users. "Exchange function" of Infinito Wallet, powered by our third-party exchange service - Changelly, serves to help users conveniently exchange between cryptocurrencies. Using this feature is much more more cost - saving as users do not have to pay for transaction fee when sending it back and forth an exchange to trade.

Please note that our exchange partner will receive a very small percentage of exchange amount as service fee. This fee is public for user to review and decide whether to process the exchange transaction or not.