Does not give the correct exchange rate. Too many ceros and wrong qty

Not sure how this app can still be on here as I tried exchange rate from colones (from Costa Rica to American dollars) and viceversa one kept giving me a cero no matter what number I inserted. And the other one was giving me a incorrect total.
100 colones was 183 dollars.
That is complete wrong as the colones is around 545 to 1 dollar .... the worse app ever !!!

Rent in Hermosa about World Currency Converter FOREX, v3.9.1