In certain situations it makes sense to ride on Zwift while also using another training app. Perhaps you want to use TrainerRoad while still racking up those Zwift XP points, or use Tacx’s Training app to precisely control wattage on your Neo as you ride?
With a smart trainer it’s easy: just avoid pairing your trainer as a “controllable trainer” in Zwift so the game receives your power data but does nothing to control your trainer. Then use the other app for trainer control. Here’s a simple look at how it’s done: