Switching between Zwift app and Companion app

Let’s say I’m in the middle of riding a stage of the tour de Zwift on my iOS device and I open my Companion app on the same device. Can I then return to the Zwift app for the remainder of the stage without messing up my ride metrics? Will I lose that stage altogether? Or will things continue as usual? I’m a new Zwifter and I’ve never gone back and forth between the 2 apps during a ride.

Quick answer, you cannot run the Zwift App and the Zwift Companion App on the same device at the same time.