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.Listed by editorsStandalone — Runs without iPhone
Training TodayBetoli LtdA daily readiness score from your heart rate variability, on the wristHealth · HealthKitListed by editorsPartial — Partly independent
AthlyticMyndArc, LLCRecovery, sleep and training load, with workouts logged from the WatchFitness · HealthKitListed by editorsPartial — Partly independent
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 editorsPartial — Partly independentAthlyticMyndArc, LLCRecovery, sleep and training load, with workouts logged from the WatchFitness · HealthKitListed by editorsPartial — Partly independentGentler StreakGentler Stories d.o.o.Activity guidance that reads your body and says when to restFitness · HealthKitCompare them
| App | Works 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 |