Simon Marshall
← Hytraxx

Privacy Policy — Hytraxx

Last updated: July 2026

1. Overview

Hytraxx ("the App") is a race and sim tracker for HYROX athletes, available on iPhone, Apple Watch, and compatible Garmin watches. This policy explains what data the App collects, how it is used, and your rights over that data.

The short version: your race data stays private to your own devices and syncs between them using your own iCloud account — unless you explicitly choose to publish a result to the public Leaderboard (see Section 6), which is the only feature that shares data beyond your own devices. We do not operate any servers of our own, we cannot see or access your private data, and we do not use any third-party analytics, advertising, or tracking frameworks.

2. Data Stored on Your Device

The App stores the following data using Apple's SwiftData framework:

  • Race results — finish times, station-by-station splits, average heart rate, calories, category, and event name, whether tracked live on your Apple Watch or Garmin watch, or logged manually on your iPhone for a race completed without a wearable
  • Leaderboard sharing status — whether a given result has been published to the public Leaderboard (see Section 6), so the App can show you an accurate share/unshare state

This data is automatically synced across your own Apple devices using Apple's CloudKit, in your private iCloud account. This sync happens entirely within Apple's infrastructure — it is not accessible to us, and we do not have a server that receives, stores, or processes this data.

Your settings (default race category, body weight, units, haptics preference) are stored locally on-device only and are not synced.

3. Apple HealthKit

With your explicit permission, the App reads and writes the following data types from Apple Health:

Write (recorded when you complete a race or sim):

  • Workouts (activity type, start time, end time, duration)
  • Distance (running distance per segment)
  • Active energy burned (calories)
  • Heart rate samples

Read (used to enrich your race summaries):

  • Workouts
  • Heart rate
  • Active energy burned (calories)
  • Distance
  • Body mass
  • VO₂ max

This data is used solely to record your HYROX races as workouts in the Health app and to display richer race summaries within the App. We do not share HealthKit data with any third party, and it is never used for advertising or sold.

You can revoke HealthKit access at any time in Settings → Privacy & Security → Health → Hytraxx.

4. Apple Watch

Race and sim tracking happens live on the Apple Watch app, including heart rate and calories captured from the watch's own sensors during the workout. Your selected race category, in-progress workout state, and completed results are communicated between your iPhone and Apple Watch using Apple's WatchConnectivity framework and HealthKit. This happens directly between your two devices over your local network or Bluetooth — no data passes through our servers.

5. Garmin Watches

If you pair a compatible Garmin watch, the App uses Bluetooth — via the Garmin Connect IQ Mobile SDK and the Garmin Connect app — to receive race and workout data (category, timing, station splits, average heart rate, and calories) recorded on your watch.

This data is transmitted directly from your Garmin device to your iPhone over Bluetooth. It is not sent to Garmin's servers by the App, and is not sent to us. Once received, it is stored and synced the same way as any other race result (see Section 2).

Device pairing itself is handled by the Garmin Connect app, which is required to select which of your paired watches to share with Hytraxx.

6. Public Leaderboard

Hytraxx includes an optional Leaderboard where you can compare your race times against other athletes in your category. This is the only feature in the App that shares data beyond your own devices.

This is entirely opt-in. Nothing about a result is shared unless you explicitly tap "Share to Leaderboard" on that specific result.

If you choose to share a result, the following becomes visible to other Hytraxx users browsing the Leaderboard:

  • A display handle you choose yourself — never your real name, Apple ID, or iCloud account information
  • Your category, event name, and date
  • Your total time and individual station splits
  • Whether the result was a race or a simulation

This data is stored in Apple's CloudKit public database — a shared space accessible to all Hytraxx users, separate from the private, per-account iCloud sync described in Section 2. It remains hosted entirely on Apple's infrastructure; we do not operate a server that stores or processes it.

You can remove a shared result from the Leaderboard at any time using "Remove from Leaderboard" on that result. You can also report another user's entry if it looks incorrect or abusive — entries are automatically hidden from browsing once they receive multiple reports, pending review.

7. Data We Do Not Collect

  • We do not collect your real name, email address, Apple ID, or any account information — the Leaderboard's display handle (Section 6) is chosen by you and is never derived from any of these
  • We do not use advertising networks or ad identifiers (IDFA)
  • We do not use analytics frameworks (no Firebase, Mixpanel, Amplitude, etc.)
  • We do not track you across apps or websites
  • We do not collect location data
  • We do not operate any servers of our own, and no data is sent to us

8. Children's Privacy

The App is not directed at children under 13. We do not knowingly collect data from children.

9. Data Retention and Deletion

To delete all data:

  1. Delete the App from all your Apple devices — this removes locally stored race results, settings, and (if signed into iCloud) triggers removal of your synced CloudKit data <<<<<<< Updated upstream
  2. To also remove Health data written by the App, go to Health → Browse → [data type] → Show All Data and delete entries tagged as sourced from Hytraxx
  3. To remove Garmin-sourced history from your watch, use the Garmin Connect app to manage or uninstall the Hytraxx watch app =======
  4. To also remove Health data written by the App, go to Health → Browse → [data type] → Show All Data and delete entries tagged as sourced from Hytraxx
  5. To remove Garmin-sourced history from your watch, use the Garmin Connect app to manage or uninstall the Hytraxx watch app
  6. To remove data you've shared to the public Leaderboard, use "Remove from Leaderboard" on that result before deleting the App — Leaderboard entries live in Apple's public CloudKit database rather than your private iCloud data, so deleting the App does not automatically remove anything already published there

Stashed changes

10. Security

Data on your device is protected by iOS's built-in encryption (hardware-level encryption tied to your device passcode). Data synced via CloudKit is protected by Apple's iCloud infrastructure and is only accessible from your own signed-in devices. The App does not implement custom encryption beyond what Apple's operating system provides.

11. Changes to This Policy

If we make material changes to this policy, we will update the "Last updated" date above. Continued use of the App after changes constitutes acceptance of the revised policy.

12. Contact

If you have questions about this privacy policy or your data, please contact:

Email: admin@simonbmarshall.co.uk

Hytraxx is an independent app and is not affiliated with, endorsed by, or officially connected to HYROX GmbH, the HYROX race series, Apple Inc., or Garmin Ltd.