No account, no servers of our own, no tracking. Here's exactly what ZonePit reads, what happens on device and what only leaves at your request.
Analysed on your iPhone
ZonePit has no servers of its own, no account and no analytics. Your health data is analysed on your device only.
Calculation
Load, form, readiness and plan are calculated on device.
Storage
Plan and settings live only in the app. Delete it and they're gone.
Coach powered by Apple's Foundation Models
The coach uses Apple Intelligence's language model right on your iPhone. No question goes to an external AI service.
Principle
The app calculates, the model explains. That keeps numbers traceable.
Without Apple Intelligence
Analysis and planning work fully; changes go through a form.
Limits
No diagnoses and no medical advice. Plus a dedicated safety layer: no weight-loss or diet targets, and a pointer to medical advice for concerning questions.
Apple Health
You decide in Apple Health which data ZonePit may read.
Read
Workouts, heart rate, power, pace, HRV, resting heart rate, sleep, body measurements such as height and weight, nutrition; cycle data only if you allow it. The full list is in the privacy policy.
Write
With its own permission, ZonePit saves your perceived effort for a workout to Apple Health. At your request, completed sessions and values you enter yourself (e.g. height and weight) are saved too. ZonePit never changes existing entries.
What can leave the device, only if you want
Only two connections are possible, both optional and neither with health data.
Intervals.icu
Planned sessions to your own Intervals.icu calendar, e.g. for Zwift. Workout targets only, no health data.
Weather
For forecasts and weather per workout, your iPhone asks Apple's weather service using your location, approximate or precise, as you choose. We run no server for it. ZonePit asks at first launch; you can turn it off at any time.
Built for Apple
ZonePit is a native iPhone app, not a website in an app wrapper.
Technology
HealthKit, Foundation Models, SwiftUI, Swift Charts, WidgetKit.
Watch and weather
WorkoutKit for sessions on Apple Watch, WeatherKit for weather.
Accessibility
Built in from the start and checked with every new feature.
In focus
VoiceOver, large text (Dynamic Type), high contrast and reduced motion are checked with every feature.
Evidence
A full review of every screen is under way before the App Store launch.
