Legal

Terms of Service

Last updated: 13 November 2026

These terms apply when you use apps made by Halo Design (“we”, “us”), including Closed Loop, and this website. By using them, you agree to these terms. If you do not agree, please do not use them.

1. The beta

Closed Loop is in a private, non-commercial beta. It is available by invitation only, through Apple TestFlight, and is free during the beta. Because it is a beta, features may change, break or be removed, and the service may be interrupted or ended at any time.

2. Not medical advice

Our apps are training tools. They are not medical advice and do not diagnose, treat or prevent any condition or injury. Training plans, readiness calls, injury-risk readings and coaching messages are general guidance generated from your data and may be wrong or incomplete. Check with a doctor before starting or changing an exercise programme, listen to your body, and stop if you feel pain, dizziness or discomfort. You exercise at your own risk.

3. AI-generated content

Some content in our apps is generated by artificial intelligence. It can contain mistakes. Use your own judgement before acting on it. No result, such as a race time, is guaranteed.

4. Your account

You are responsible for your account and for keeping your device and sign-in secure. Please give us accurate information and tell us if you think your account has been misused.

5. Acceptable use

Please do not misuse our apps: do not try to break, overload or reverse-engineer them, access other people's data, use them for anything unlawful, or share beta access or builds without our permission.

6. Your data

You own the data you bring to our apps. You give us permission to use it to provide and improve the service as described in our Privacy Policy, which also explains how to opt out of anonymised data being used for improvement.

7. Third-party services

Our apps can connect to services such as Apple Health, Apple Watch, WHOOP, Garmin, intervals.icu and Google Calendar. Those services are run by other companies under their own terms. We are not responsible for them, and a connection may stop working if they change.

8. Our content

The apps, this website and their content belong to Halo Design. You may use them for your own personal, non-commercial use while these terms apply.

9. Feedback

If you send us ideas or feedback, we may use them to improve our apps without any obligation to you.

10. No warranty

Our apps and this website are provided “as is” and “as available”, without warranties of any kind, to the fullest extent allowed by law.

11. Limitation of liability

To the fullest extent allowed by law, Halo Design is not liable for any indirect, incidental or consequential damages, or for any injury, loss of data or other loss arising from your use of our apps or website. Nothing in these terms limits liability that cannot be limited by law.

12. Ending use

You can stop using our apps at any time and ask us to delete your account. We may suspend or end your access, for example if you break these terms or when the beta ends.

13. Changes

We may update these terms. If we make significant changes, we will let you know in the app or by email. Continuing to use our apps after a change means you accept the updated terms.

14. Contact

Questions? Email enroll@halo-design.net.