**Note that in order to calculate VO2Max, HockeyTracker uses your resting heart rate (as is set by Apple during period of inactivity).
- Your account will be charged for renewal within 24-hours prior to the end of the current subscription period.
Series 0 Apple Watches are not capable of resting heart rates therefore VO2Max cannot be calculated at this time on Series 0 Watches.
Start HockeyTracker before a game and track your favorite performance stats, and afterwards, dive deep into your data.
- Depending on what subscription length you choose (Monthly or Annually), so long as your subscription is active, you will have access to the entire iPhone app for these periods, respectfully.