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Open iOS Settings → Health → Data Access & Devices → Strontr and make sure write access is enabled for Workouts, Active Energy, Walking + Running Distance, Cycling Distance, and Workout Route. Then in Strontr open Settings → Apple Health and toggle the integration off and back on. Existing past sessions don't backfill — only new finishes will write to Health.

• Confirm iOS Settings → Privacy & Security → Location Services is on, and Strontr is set to While Using the App or Always.
• Make sure Precise Location is enabled — without it, distance and route accuracy collapse.
• Wait until the GPS lock indicator turns green before starting. Indoor / heavy-cover starts can take 20–40 seconds.
• If you're running on a treadmill, distance from GPS will be ~0. We'll add manual treadmill entry in a future update.

Yes — every feature is included at no cost: workouts, runs, routines, body metrics, streaks, the Evolve adaptive plan, advanced analytics, Apple Watch, and widgets. There is no subscription to manage.

Open Settings → Account → Delete Account. This wipes all local data immediately and, if you signed in with Apple, marks your account for server-side deletion. The action cannot be undone.

Yes. Sign in with Apple and your workouts, runs, routines, history, body metrics, and settings sync securely across your iPhone, iPad, and Apple Watch. Install Strontr on a new device, sign in, and everything restores automatically. If you stay signed out, your data simply stays on that one device.

Open Strontr on the iPhone (foreground), pull down once on Home, then re-open the watch app. The phone re-pushes the snapshot via WatchConnectivity on app activation. Make sure both devices are on the latest version and on the same Apple ID.