Start on Apple Watch
Choose rounds, round length, and rest length before starting a user-initiated boxing workout.
Boxing round tracker
Review every heavy bag round from Apple Watch.
Heavy Bag Score is a focused fitness utility for recording heavy bag rounds on Apple Watch and reviewing heart-rate drift, recovery, and consistency on iPhone without extra boxing hardware.
Core workflow
Train on Watch, review on iPhone
Capture heart rate
Use HealthKit heart rate during the session to summarize effort across rounds and rests.
Sync to iPhone
Transfer completed session summaries to the paired iPhone for review.
Review the session
Compare Bag Score, round heart rate, drift, and recovery after training.
Health data
Built for fitness review, not medical advice
HealthKit when authorized
The Watch app reads heart rate during a user-started workout and writes the completed workout to Health.
Local-first storage
Session summaries are stored locally and transferred between your paired Apple Watch and iPhone.
No app ads or app analytics SDKs
The current app version has no advertising SDKs, third-party analytics SDKs, backend upload, or account system.
No clinical claims
Heavy Bag Score does not provide diagnosis, treatment recommendations, injury-prevention guidance, or medical advice.
No punch-power claims
The current version reviews heart-rate rounds. It does not measure punch count, punch speed, punch power, or boxing skill.
Links