Best Apple Watch apps for heart health with Smart Stack widgets
3 Apple Watch apps for heart health with Smart Stack widgets on Launch on Watch. One runs entirely on the Watch, without an iPhone. 2 of the 3 are free to download. Other Watch features they use most: HealthKit (3), Complications (2) and Siri / App Intents (2).
Updated 28 Sep 2026 (UTC) from the live catalogue. Every app here was submitted by its developer or listed by our editors and reviewed before it appeared.Compare them side by sideListed by editorsRuns without iPhone
Training TodayBetoli LtdA daily readiness score from your heart rate variability, on the wristHealth · HealthKitListed by editorsPartly without iPhone
AthlyticMyndArc, LLCRecovery, sleep and training load, with workouts logged from the WatchFitness · HealthKitListed by editorsPartly without iPhone
Gentler StreakGentler Stories d.o.o.Activity guidance that reads your body and says when to restFitness · HealthKit
Training TodayBetoli LtdA daily readiness score from your heart rate variability, on the wristHealth · HealthKitListed by editorsPartly without iPhoneAthlyticMyndArc, LLCRecovery, sleep and training load, with workouts logged from the WatchFitness · HealthKitListed by editorsPartly without iPhoneGentler StreakGentler Stories d.o.o.Activity guidance that reads your body and says when to restFitness · HealthKitCompare them
| App | Runs without iPhone | Price | Watch features |
|---|---|---|---|
| Training Today | Yes | Free · In-app purchases | HealthKit, Complications, Siri / App Intents, Smart Stack / widgets |
| Athlytic | Partly | Subscription | HealthKit, Smart Stack / widgets, Siri / App Intents |
| Gentler Streak | Partly | Free · In-app purchases | HealthKit, Complications, Smart Stack / widgets |