You will be prompted to link your account after you make your in-app purchase.
If you purchased an iTunes subscription and were not prompted to link your account, or if you chose to link at a later time, you can still link your subscription to a Rogers Media account for use on other devices.
Steps (iOS):
Go to Sportsnet+
Tap on profile icon (top right)
Tap on Connect Purchase
Complete the account linking flow
You will see once completed the Connect Purchase toggle set to “ON”
Steps (Apple TV):
Select Settings
Select to Connect Purchase
Complete the account linking flow
You will see once completed the Connect Purchase toggle set to “ON”