awful app - wrong rates!!!

The app is awful. The rate of USD is changing very fast in Russia. By the end of the day the real rate was 72 rur to 1 usd, but coinverter widget still says it is 55. I’ve lost money because of that!!!!! Don’t buy this, if you don’t want to lose your money! I wish I could get a refund

DataGreed about Coinverter, v1.0.4