Privacy Policy

TrainingLab · Last updated: 2 October 2026

            In short: TrainingLab is built to keep your data yours. Your workouts and
            health data stay on your device and in your own private iCloud. There is no analytics server,
            no advertising, and no third-party tracking. The app's intelligence features run entirely on
            your device using Apple's on-device models.
        

Who we are

TrainingLab (“the app”, “we”) is a workout-tracking app for iPhone and Apple Watch. This policy explains what data the app uses and how. If you have questions, contact us at justus.besser@online.de.

Data the app uses

Workouts, exercises and plans you create. Stored on your device with SwiftData and synced through your personal iCloud account (see below). We never receive them.
Health & fitness data (HealthKit). With your permission, the app reads heart rate, active energy, distance, steps, and — for the recovery features — heart-rate variability, resting heart rate, and sleep. It writes completed workouts (and related heart-rate/energy/distance samples) back to Apple Health. This data is processed only on your device.
Apple Music (MusicKit). If you use the in-app player, the app accesses your Apple Music library and playback state to show and control what's playing. This happens through Apple's frameworks; we do not receive your listening history.
Location (GPS routes). During outdoor workouts (e.g. running, cycling, walking, hiking) the app records your location, with your permission, to show your route live and save it as a workout route in Apple Health. Location data is processed only on your device and in Apple Health; we never receive it. You can revoke location access at any time in Settings → Privacy & Security → Location Services; the app keeps working without route recording.

On-device intelligence

TrainingLab's readiness score, personalized workout generation, difficulty prediction, and the “Describe a workout” feature are computed on your device. The natural-language parts use Apple's on-device Foundation Models (Apple Intelligence). Your health signals and training history are analyzed locally and are never uploaded to us or any third party for these features. These features are provided for general fitness guidance and are not medical advice.

iCloud sync

Your workouts, exercises, and plans sync across your devices using Apple's CloudKit in your own private iCloud database, tied to your Apple ID. We have no access to this data, and it is governed by Apple's Privacy Policy. You can disable iCloud sync in your device's iCloud settings.

What we do NOT do

We do not collect analytics or usage data on our own servers.
We do not use any third-party advertising or tracking SDKs.
We do not sell, share, or transmit your health data.
There is no account to create — you use your existing Apple ID.

Notifications

If you enable reminders, the app schedules local notifications on your device. No notification content is sent to an external server.

Your control

Revoke Health access anytime in Settings → Privacy & Security → Health → TrainingLab.
Revoke Apple Music access in Settings → TrainingLab.
Revoke location access in Settings → Privacy & Security → Location Services.
Delete your data by deleting workouts/plans in the app, or by removing the app and its iCloud data from your Apple ID.

This website

This website is hosted by IONOS SE (Montabaur, Germany). When you visit it, the host automatically processes standard server-log data your browser sends (IP address, date and time, page requested, browser and operating system) to deliver the site securely; these logs are deleted after a short period. The website uses no cookies, analytics, or tracking. Details under the GDPR are in our Datenschutzerklärung (German).

Children

The app is not directed to children under 13 and does not knowingly collect their data.

Changes

We may update this policy as the app evolves. Material changes will be reflected here with a new “last updated” date.