Google updates iOS version of Hangouts to make sharing files and photos easier
Another new feature that comes with version 9 of Google Hangouts for iOS will freeze video sharing during calls once the iOS Low Power Mode is activated. The battery saving setting for the iPhone will darken your screen, put your phone to sleep faster, disable background updates for apps, and throttle the processor, all in the name of getting an extra three hours of battery life.
Google Hangouts for iOS is a free app. You can install it on your iDevice by clicking on the sourcelink.
source: GoogleHangouts via 9to5Mac