Xchange

In this application, you can put your V.E.T (Total Effective Value) of your exchange rate and save.

Many apps just convert the currency to its current value. However, when you plan an international trip, over time you exchange your money for the money of the country of origin. The VET is the value of this exchange, plus the bank spreed and the IOF.
Because of this, your VET will be different from the current currency quote, either up or down. So this app converts the value based on your VET.

Example: When you exchanged Real for Euro, the exchange rate was R$5.00. After a few months, on your trip, the exchange rate was already R$6.00. When viewing a sneaker worth 100 euros, at the current exchange rate it is worth R$600. However, in your exchange quote that was months before, its value is R$500. This difference can lead you to buy or not this sneaker, compared to the value that will be in Brazil.