Serious problems

This app worked great on my previous iPhone, but with the change to a new one and iOS 8.1.2 the app is unusable. No matter what field you try to input, the input will change to the one uppermost on the screen so calculations are not what you need at all. Hope this gets fixed as this was once a very useful app. Would have rated it at least 4 stars before this.

hhhasting about Convert +