I am having trouble figuring out how to switch to Safari from a native app in iOS 7+. I\'ve used UIApplication.sharedApplication.openURL(), but that opens a new
The behaviour you described is exactly what FB's AppLinks is designed for, and you'll get the same behaviour with all iOS apps that support it (which is quite a lot) out of box!
By the way Google Maps uses the same component: you can see it if you open Google Maps from let's say Fantastical.app!