Good app, uneven performance
I like the app, it works with one caveat: it crashes when you are trying to change currencies when the internet is not present. And it is when you need it the most - in a taxi in a god-forgotten place on earth, in a booth in a middle of an Asian market, etc. when you need it the most and when you need it fast, it let you down. It freezes, and it crashes. When you very patiently and slowly move the currency up, with third or fourth try after a couple of crashes the app allows you to change currencies. I believe it is partially due to the wrong goal setting: the app developers believe that the customer needs as precise and minute exchange rate as possible whenever I as average tourist need the conversion rate in the ballpark, but fast and in all conditions and more often as not in the absence of the internet. I hope it will be remedied in the next upgrade. Other than that the app performs as intended.
