Zwift minimal cost

[T-Bo]

Yes
Zwift I understand automatically switches ERG mode on of off depending whether in workout mode. TrainerRoad is purely ERG. Wahoo app can do ERG too.

You can switch ERG off in TR if you wish.

 

[CXRAndy]

You can switch ERG off in TR if you wish.

True, it does have resistance setting. Its less often used, as TR is ERG based training mainly

 

[T-Bo]

True. I find using resistance mode is better if you need to do short high power bursts within intervals or any shorter duration power changes.