Ladies and Gentlemen,
It's really good to hear that you are developing your product, which I like a lot, but honestly, I'm sure you have much simpler issues to deal with.
Foreign currencies operations have a HUGE lack in your product.
Transferring from one bank account in a foreign currency to another account in a foreign currency is directly not possible (we have to use transit account), although all your competitors do it without any problems.
Paying a foreign currency bill from anothe foreign currency bank account is also impossible....
6 decimal places when specifying the exchange rate is obviously not enough, when converting amounts over 100,000 it is almost impossible to get to the right amount on the debit account.
Nevertheless - best Regards and good luck!