Nest owners on iOS have been noticing issues with the latest version of the Nest app, which is currently version 4.4.0. Force-close seems to happen right from the start, but it might not be affecting everyone. In diving through the Nest community support forums, there seems to be a lot of this force-close going on with iPhone 6 and 6 Plus. Others note their older iPhones — also running iOS 8.1 — aren’t affected. Still, it seems as though Nest pulled the app from circulation for the time being.