YourTrainer is design to assist both you and your personal trainer get the most out of your exercising. Both the sessions with them and the ones you complete on your own.
Allowing your personal trainer to track your progress using Google Fit data provides them with data they haven't previously been able to use. This allows for more efficient work outs.
YourTrainer contains hundreds of exercises with both written and video examples of how to perform them.
Allows you and your personal trainer to get the most out of your workouts.