Legal

Terms of Service

Last updated: June 11, 2026

These Terms govern your use of the Holdfast: Freedive Trainer app (“Holdfast”, “the app”). By downloading or using the app, you agree to these Terms. If you do not agree, do not use the app.

⚠ Safety first — read this

Breath-hold training carries real risks, including loss of consciousness. By using Holdfast you acknowledge and agree that:

Dry training only. Never practice breath-holds in or near water, and never alone — shallow-water blackout gives no warning and can be fatal.
No hyperventilation. Do not over-breathe to extend holds. Stop immediately if you feel dizzy, lightheaded, or unwell.
Holdfast is a training aid, not a substitute for certified freediving instruction or supervision.
You train at your own risk and are responsible for your own safety.

1. Medical disclaimer

Holdfast is not a medical device and does not provide medical advice. It is intended for general fitness and training purposes only. Consult a qualified physician before beginning any breath-hold or breathing program, especially if you are pregnant or have heart, respiratory, blood-pressure, neurological, or other health conditions. Health-related figures shown in the app are estimates and should not be relied on for medical decisions.

2. License

Subject to these Terms, we grant you a personal, non-exclusive, non-transferable, revocable license to use Holdfast for your own non-commercial use on Apple devices you own or control, in accordance with the Apple Media Services Terms and the App Store Terms of Use.

3. Premium features and purchases

Holdfast’s core CO₂ and O₂ tables are free. Optional Premium features may be offered as a one-time purchase or subscription through the App Store. Prices are shown in the app before purchase. Any subscription automatically renews unless cancelled at least 24 hours before the end of the current period; manage or cancel subscriptions in your App Store account settings. Payments, renewals, and refunds are handled by Apple under Apple’s terms; we do not process payments directly.

4. Acceptable use

You agree not to reverse engineer, decompile, resell, or redistribute the app except as permitted by law, and not to use it in any unlawful way or in any manner that could harm yourself or others.

5. Intellectual property

Holdfast, its name, design, and content are owned by us and protected by applicable intellectual-property laws. These Terms grant you no rights to our trademarks or branding.

6. Disclaimer of warranties

The app is provided “as is” and “as available,” without warranties of any kind, whether express or implied, including fitness for a particular purpose, accuracy, or non-infringement. We do not warrant that the app will be uninterrupted, error-free, or that timing and haptics will be precise in all conditions.

7. Limitation of liability

To the fullest extent permitted by law, we will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, injury, or harm arising from or related to your use of the app. Nothing in these Terms limits liability that cannot be limited under applicable law.

8. Governing law

These Terms are governed by the laws of [your jurisdiction], without regard to conflict-of-law rules.

9. Changes

We may update these Terms from time to time. The “Last updated” date above reflects the latest version. Continued use of the app after changes take effect constitutes acceptance of the revised Terms.

10. Contact

Questions about these Terms? Email support@holdfast.app.