If you are an American who buys gas in Canada, this simple, easy to use app is for you. It calculates how much money you lose each time you fill up in Canada.

It does all the conversions for you, including liters to gallons and the price in CDN $ to US$, taking the exchange rate into account.

Since exchange rates vary from place to place ( banks, credit card, duty free store ), you can enter your own exchange rate. Your rate will be saved until you change it.

You can also enter the price of gas back home to find out how much you lost. This price is also saved until you change it.