What happened??? – Tip Calculator % Tap Tip Review

This app had worked great-very helpful for splitting fair & accurately with multiple people dinning together...then I bought an iPhone 6+ and suddenly the app is completely BLANK!?! Very disappointing. I'm going to stop recommending this to friends. If the developer doesn't care enough to make this app for ALL iPhones then I can't recommend it. Please FIX THIS!
Review by Lester515 on Tip Calculator % Tap Tip.