Smart Trainer without Zwift/Trainerroad/etc
I am thinking about buying a smart trainer in order to be able to get a good workout while my kid is asleep. However, I am curious about how they work. I know that there are things such as zwift and trainer road, but can the trainer be used in smart mode without paying for these services? Are there free interval workouts? I am specifically thinking about the kickr snap if that matters.