Effective date: 06/22/2026
Last updated: 06/22/2026
These Terms of Service ("Terms") are a binding agreement between you and Twisted Data Studios ("Twisted Data Studios", "we", "us", "our") and govern your access to and use of the CalmTide mobile application and any related content, features, and services (collectively, the "App"). Please read them carefully. By downloading, installing, or using the App, you agree to these Terms. If you do not agree, do not use the App.
These Terms supplement, and do not replace, Apple's Licensed Application End User License Agreement (the "Standard EULA"), available at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/, which also applies to your use of the App. Where these Terms grant us greater protection than the Standard EULA and do not conflict with it, these Terms apply.
1. Acceptance and Eligibility
By using the App you represent that you are at least 13 years old (or the minimum age of digital consent in your jurisdiction, if higher) and are able to form a binding contract. The App is intended for a general audience and is not directed to children under 13. If you are using the App on behalf of another person, you are responsible for their compliance with these Terms.
2. License to Use the App
Subject to these Terms and the Standard EULA, we grant you a personal, limited, non-exclusive, non-transferable, non-sublicensable, revocable license to download and use one copy of the App on Apple-branded devices that you own or control, solely for your personal, non-commercial use. The App is licensed, not sold, to you. We reserve all rights not expressly granted.
You agree not to, and not to permit others to: copy, modify, reverse-engineer, decompile, or disassemble the App except to the extent permitted by law; rent, lease, lend, sell, or redistribute the App; remove any proprietary notices; or use the App in any unlawful manner or in violation of these Terms.
3. Not Medical Advice — Wellness Disclaimer
CalmTide provides wellness estimates only, based on published exercise-physiology and recovery research. It is not a medical device and does not provide medical advice, diagnosis, or treatment. CalmTide does not measure cortisol directly; its HPA Balance Score, daily cortisol status, baseline-cortisol trend, and related outputs are model-based estimates derived from Apple Health data and may be inaccurate or incomplete for you.
Nothing in the App creates a doctor–patient or other professional relationship. Always consult a qualified healthcare professional about stress, sleep, exercise, recovery, or any health concern, and never disregard or delay professional medical advice because of something shown in the App. The App's recommendations, protocols, and breathwork sessions are general wellness suggestions, not prescriptions. If you experience symptoms or distress, seek professional care; in an emergency, contact emergency services.
4. Assumption of Risk
You understand and agree that you are solely responsible for your own health, training, and lifestyle decisions, including how you exercise, recover, sleep, and manage stress. You knowingly and voluntarily assume all risks arising from those decisions and from your use of the App, including any decision to begin, change, or intensify physical activity based on information in the App.
5. Estimates and Accuracy
The App relies on data read from Apple Health (HealthKit) with your permission and, optionally, a small on-device summary exchanged with SolGlow. This data may be missing, delayed, or inaccurate, and the App typically needs about a week of data before its scores settle. Calculations use published models and general assumptions that may not fit your individual physiology or circumstances. We do not warrant that any score, status, trend, or recommendation is accurate, complete, reliable, or suitable for any particular purpose.
6. Purchases and Subscriptions
CalmTide is free to use. Optional paid features ("CalmTide Pro") are sold through the Apple App Store using Apple's in-app purchase and StoreKit systems as a monthly or annual subscription or a one-time lifetime unlock. Apple processes all payments; we receive only the entitlement status needed to unlock Pro and do not see your payment details. Prices are shown in the App. Subscriptions renew automatically until cancelled and can be managed or cancelled in iOS Settings → [your name] → Subscriptions; the lifetime unlock is a single, non-recurring purchase. Except where required by law or by Apple's policies, payments are non-refundable; refund requests are handled by Apple. Use Restore Purchases on the paywall to recover a prior purchase.
7. Acceptable Use
You agree to use the App only for lawful purposes and in accordance with these Terms. You will not interfere with or disrupt the App, attempt to gain unauthorized access to any system, or use the App to violate the rights of others or any applicable law or regulation.
8. Intellectual Property
The App, including its software, design, text, graphics, and the CalmTide and TwistedData Studios names and logos, is owned by Twisted Data Studios or its licensors and is protected by intellectual-property laws. These Terms grant you no right to use our trademarks without our prior written permission.
9. Third-Party Services
The App interoperates with third-party services, including Apple's App Store and HealthKit, and — if you install it — the companion app SolGlow via a secure on-device App Group container. Your use of those services is governed by their own terms and privacy policies, and we are not responsible for them. We do not control and are not liable for the availability, accuracy, or content of any third-party service. See our Privacy Policy for how data is handled.
10. Disclaimer of Warranties
TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE," WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND. TWISTED DATA STUDIOS AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES AND CONDITIONS, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, QUIET ENJOYMENT, TITLE, AND NON-INFRINGEMENT.
WE DO NOT WARRANT THAT THE APP WILL MEET YOUR REQUIREMENTS, BE AVAILABLE ON AN UNINTERRUPTED, SECURE, OR ERROR-FREE BASIS, OR THAT ANY ESTIMATE, SCORE, OR RESULT WILL BE ACCURATE OR RELIABLE. NO ADVICE OR INFORMATION, WHETHER ORAL OR WRITTEN, OBTAINED FROM THE APP CREATES ANY WARRANTY NOT EXPRESSLY STATED HERE. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF CERTAIN WARRANTIES, SO SOME OF THE ABOVE EXCLUSIONS MAY NOT APPLY TO YOU.
11. Limitation of Liability
TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT WILL TWISTED DATA STUDIOS OR ITS OWNERS, EMPLOYEES, OR SUPPLIERS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, DATA, GOODWILL, OR OTHER INTANGIBLE LOSSES, OR FOR ANY PERSONAL INJURY, ILLNESS, OR HEALTH CONSEQUENCE, ARISING OUT OF OR RELATING TO YOUR USE OF OR INABILITY TO USE THE APP, WHETHER BASED ON WARRANTY, CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, OR ANY OTHER LEGAL THEORY, AND WHETHER OR NOT WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
TO THE FULLEST EXTENT PERMITTED BY LAW, OUR TOTAL CUMULATIVE LIABILITY FOR ALL CLAIMS RELATING TO THE APP WILL NOT EXCEED THE GREATER OF (A) THE TOTAL AMOUNT YOU PAID US (OR APPLE, FOR THE APP) IN THE TWELVE MONTHS BEFORE THE EVENT GIVING RISE TO THE LIABILITY, OR (B) US $50. SOME JURISDICTIONS DO NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY FOR CERTAIN DAMAGES, SO SOME OF THE ABOVE MAY NOT APPLY TO YOU; IN SUCH CASES OUR LIABILITY IS LIMITED TO THE MAXIMUM EXTENT PERMITTED BY LAW. NOTHING IN THESE TERMS LIMITS LIABILITY THAT CANNOT BE LIMITED UNDER APPLICABLE LAW, SUCH AS LIABILITY FOR DEATH OR PERSONAL INJURY CAUSED BY OUR GROSS NEGLIGENCE, FRAUD, OR WILLFUL MISCONDUCT.
12. Indemnification
To the fullest extent permitted by law, you agree to indemnify, defend, and hold harmless Twisted Data Studios and its owners, employees, and agents from and against any claims, demands, losses, liabilities, damages, costs, and expenses (including reasonable legal fees) arising out of or related to your use or misuse of the App, your violation of these Terms, or your violation of any law or the rights of any third party.
13. Apple-Specific Terms
These Terms are between you and Twisted Data Studios only, not with Apple. Apple is not responsible for the App or its content. Apple has no obligation to provide maintenance or support for the App and no warranty obligation whatsoever with respect to the App. Apple is not responsible for addressing any claims relating to the App, including product-liability, regulatory, or intellectual-property claims. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.
14. Changes to the App and These Terms
We may modify, suspend, or discontinue the App or any feature at any time. We may also update these Terms from time to time. The "Last updated" date above shows when they last changed. Material changes will be reflected in the App or on this page, and your continued use of the App after a change takes effect constitutes acceptance of the revised Terms.
15. Termination
These Terms remain in effect while you use the App. You may end them at any time by deleting the App. We may suspend or terminate your license if you breach these Terms. Provisions that by their nature should survive termination — including the disclaimers, limitation of liability, indemnification, and governing-law sections — will survive.
16. Governing Law and Disputes
These Terms are governed by the laws of [Insert governing jurisdiction — e.g., the State of [State], United States], without regard to its conflict-of-laws rules, and you and Twisted Data Studios submit to the exclusive jurisdiction of the courts located there, except where applicable consumer-protection law gives you the right to bring proceedings in your own jurisdiction. If any provision of these Terms is held unenforceable, the remaining provisions remain in full force and effect.
17. General
These Terms, together with the Standard EULA and our Privacy Policy, are the entire agreement between you and Twisted Data Studios regarding the App and supersede any prior agreements. Our failure to enforce any provision is not a waiver. You may not assign these Terms; we may assign them in connection with a merger, acquisition, or sale of assets.
18. Contact
Questions about these Terms? Contact:
Twisted Data Studios
Email: support@twisteddatastudios.com