At any moment, you can:
Erase the data from an exercise
Erase the data from an entire training session (all exercises played that day)
Delete your account and all data associated
Erase the data from an exercise
Scroll down to the very bottom of the Progress tab and click All Data.
Choose the training session day and open it.
Click Edit and select the exercise you want to erase
Hit Done
Erase the data from an entire training session day
Scroll down to the very bottom of the Progress tab and click All Data.
Click Edit and select the training session day you want to erase
Hit Done
Delete your account and all data associated
Access your Settings (top left corner of the app) > My account > Delete my Account
At the moment, there is no feature to batch delete all training data. You’ll either have to delete training days manually or delete your entire account to start fresh.