Crashes on iOS 8.4

This app crashes way too much. As Im typing my text it keeps crashing once the person Im texting sends me a text back and immediately goes back to the dashboard screen and I lose the text that I was typing.

Im on a iOS 8.4 with iPhone 6+.

Also why does iOS users dont get a new UI and only iOS users that are 9+

toSLOW 2CURIOUS about Google Voice, v1.11