No. You can use the core training log without a Zone Training Log account. An account is optional for cloud sync and access across devices, including the web app.
Who decides what happens to my training data?
You choose the health permissions you grant, whether to connect cloud sync, and whether to use AI features. AI receives relevant training context only after your consent. The privacy policy explains the full data handling details.
Is AI Coaching included for free?
AI Coaching requires Premium. You can start your training log for free and decide later whether you want a personalized AI training plan.
Can I use the app without AI?
Yes. AI is optional. Your training log, heart-rate-zone analysis, and progress views remain useful independently of AI Coaching.
What is Zone Training Log’s source of truth?
Apple Health on iPhone and Health Connect on Android. Your watch or workout app writes data there; Zone Training Log reads permitted workouts and heart-rate samples. It does not sign in to Garmin, Strava, COROS, or other vendor accounts.
What data does Zone Training Log access?
Only the health data you permit for product features, such as workouts and heart rate. Provider account credentials are never requested by this connection flow. See the privacy policy for full handling details.
Why is my workout missing?
First verify the workout exists in Apple Health or Health Connect, then check that the source app may write it and Zone Training Log may read it. Multi-step routes can also need time to finish syncing.
Why does a workout have no heart-rate zones?
A workout record and detailed heart-rate samples are separate data. If the source sends only time, distance, calories, or an average heart rate, Zone Training Log cannot reconstruct time in zones.
What if two apps write the same workout?
Avoid enabling multiple export chains for the same original workout when possible. Apple Health and Health Connect may contain duplicate records, and Zone Training Log can only work with the records and source metadata they expose.
Which source gets priority?
Source priority is managed in Apple Health or Health Connect. Prefer the original recording source with the most complete workout and heart-rate detail, and disable redundant onward exports when they create duplicates.
Make the connection
From your watch. Into your log.
Choose your phone and the app that records your workouts. Your setup guide is right here.
Apple Watch
Apple Health
Zone Training Log
Zone reads workouts from Apple Health. Follow the Apple Watch setup guide below.
Choose your source above. Available metrics and sharing steps depend on your watch and source app.
Your setup guide
Connect Apple Watch on iPhone
Recommended
Apple Watch records into Apple Health, which is Zone Training Log’s source of truth on iPhone.
Apple WatchApple HealthZone Training Log
Get connected
1Pair Apple Watch with this iPhone and record a workout with the Workout app or another Health-compatible app.
2Open Zone Training Log and allow workout and heart-rate read access when asked.
3Keep Apple Health enabled as the shared store; no Apple Watch account connection is needed in Zone Training Log.
Check your first workout
Open Health → Browse → Activity → Workouts and confirm the workout appears.
Open Health → Browse → Heart → Heart Rate and check that readings exist during the workout.
Know the limits
A workout needs usable heart-rate samples for Zone Training Log to calculate time in zones.
Third-party watch apps can write a different set of fields than Apple’s Workout app.
Still not seeing your workout?
If the workout is missing, confirm the recording app may write Workouts to Health.
If the workout has no zones, check that Zone Training Log may read Heart Rate and that the workout contains readings.
This is the recommended iPhone route. Apple’s Workout app normally provides the workout and detailed heart-rate samples needed for zone analysis.
