Rexx — Terms and Conditions

Last updated: 16 September 2026

1. Agreement to These Terms

These Terms and Conditions ("Terms") form a binding agreement between you ("you", "user") and Rexx ("we", "us") governing your use of the Rexx mobile application, its companion services and any related websites (together, the "App").

By downloading, installing, accessing or using the App, you accept these Terms and our Privacy Policy, which is incorporated here by reference. If you do not agree, do not use the App and uninstall it.

2. Health Disclaimer — Read This First

Rexx is a wellness and fitness product. It is not a medical device.

The App and any connected band or ring are not intended to diagnose, treat, cure, mitigate or prevent any disease or medical condition.
All readings — including heart rate, blood oxygen (SpO₂), blood pressure, body temperature, ECG / single-lead waveform, HRV, respiratory rate, blood component estimates, body composition, stress index, sleep stages, recovery score and fitness age — are estimates produced by consumer sensors and software models. They may be inaccurate, incomplete or delayed.
Derived scores (Recovery Score, Fitness Age, Sleep Score, Stress Index and similar) are our own non-clinical calculations intended for general wellness reference only. They are not validated clinical measures.
Never use the App to make a medical decision, to self-diagnose, or to start, stop or change any treatment or medication. Always consult a qualified healthcare professional.
In an emergency, call your local emergency number. The App does not detect emergencies, does not contact emergency services, and must never be relied upon for that purpose.
Consult a physician before beginning any new exercise programme, especially if you are pregnant, have a cardiac or respiratory condition, a pacemaker or other implanted device, or any other medical condition.
Any AI-generated summary, analysis or report produced in or shared from the App is automatically generated, may contain errors, and is not medical advice.

3. Eligibility

You must be at least the age of digital consent in your country to use the App.
If you are a minor where permitted, a parent or legal guardian must accept these Terms on your behalf and supervise your use.
You confirm you are legally able to enter into this agreement and are not barred from using the App under any applicable law or sanctions list.

4. Accounts

Certain features require an account. You must provide accurate, current information and keep it up to date.
You are responsible for safeguarding your credentials and for all activity under your account. Notify us at support@rexx.com immediately of any unauthorised use.
You may not share your account, create an account for someone else without authority, or use another person's account.
We may suspend or terminate an account that violates these Terms, is used fraudulently, or creates a security or legal risk.

5. Devices, Bluetooth and Permissions

The App connects to supported wearable devices (including HBand/Veepoo-family and QWatchPro-family bands and rings) over Bluetooth Low Energy.
Available features depend on your device model and firmware. Functions your hardware does not support will be unavailable, and we make no promise that any specific feature will work with any specific device.
The App requires operating-system permissions to function, which may include Bluetooth, location (required by the OS for Bluetooth scanning), physical activity, notifications, camera and storage. Denying a permission may disable related features.
Background syncing and notifications are subject to your operating system's power, connectivity and background-execution rules. We cannot guarantee uninterrupted background operation.
Wearable hardware is supplied by third-party manufacturers under their own terms and warranties. We are not the manufacturer and are not responsible for hardware defects, firmware behaviour, battery life or physical safety of the device.
Discontinue use of the wearable and consult a physician if you experience skin irritation, discomfort or any adverse reaction.

6. Your Data

Local-first. The App is designed to store your health and activity data in a database on your device. The App is intended to remain usable without an internet connection.
Optional sync. Where enabled, the App may transmit snapshots of your data to our servers to support backup, multi-device access and account features. Sync is best-effort; failures do not affect the data stored on your device.
Your responsibility. You are responsible for maintaining your own backups. Uninstalling the App, resetting your device, clearing app data, or losing your device may permanently delete locally stored data.
Ownership. You retain ownership of your health and personal data. You grant us a limited, non-exclusive, worldwide, royalty-free licence to host, store, process and transmit that data solely to operate, secure and support the App, and as described in the Privacy Policy.
Third-party sharing at your direction. If you choose to export, share or send a report to an external application or service (including AI assistants, messaging apps or cloud storage), that transfer is initiated by you and governed by that third party's terms and privacy policy. We are not responsible for what happens to data after it leaves the App.
Anonymised data. We may use aggregated, de-identified data that cannot reasonably identify you to improve, secure and analyse the App.
Full details of collection, processing, retention, your access/deletion rights and international transfers are set out in the Privacy Policy.

7. Licence and Acceptable Use

We grant you a personal, limited, non-exclusive, non-transferable, revocable licence to install and use the App on devices you own or control, for your own non-commercial use.

You must not:

copy, modify, translate, adapt or create derivative works of the App;
reverse engineer, decompile or disassemble the App, or attempt to derive its source code, except to the extent this restriction is prohibited by law;
remove or obscure any proprietary notice, branding or attribution;
rent, lease, sell, sublicense, distribute or commercially exploit the App or any data obtained from it;
use the App or its data to provide a medical, diagnostic, insurance, employment-screening or clinical service;
access the App by automated means, scrape it, or interfere with its normal operation;
probe, scan, overload or attempt to breach the App, our servers or another user's account;
upload malware, unlawful content, or content that infringes another person's rights;
impersonate another person, or submit false information (including false health data on shared or social features);
use the App in violation of any applicable law, regulation or third-party right.

8. Subscriptions, Purchases and Trials

Include this section only if the App offers paid features; delete otherwise.

Paid features, if offered, are billed through the Apple App Store or Google Play under their respective payment terms.
Subscriptions auto-renew for the stated period unless cancelled at least 24 hours before the end of the current period, through your store account settings.
Prices may change; we will give notice before a change takes effect for your next renewal.
Refunds are handled by the applicable app store under its policies. Except where required by law, fees are non-refundable and we do not provide partial refunds for unused periods.
Free trials, where offered, convert to a paid subscription unless cancelled before the trial ends.

9. Intellectual Property

The App, including its software, design, user interface, graphics, icons, animations, text, scoring algorithms, the "Rexx" name and logo, and all related intellectual property, is owned by us or our licensors and is protected by copyright, trademark and other laws.
Nothing in these Terms transfers any ownership to you.
Third-party SDKs, libraries, fonts and services included in the App remain the property of their owners and may be subject to their own licence terms.
If you send us feedback, suggestions or ideas, you grant us an unrestricted, perpetual, royalty-free right to use them without obligation to you.

10. Third-Party Services

The App integrates third-party services and components, which may include wearable device SDKs, cloud hosting, push notification and crash/analytics providers, and AI or messaging apps you choose to share reports with. We do not control these services, do not endorse them, and are not liable for their availability, content, accuracy or practices. Your use of them may be subject to their own terms and privacy policies.

11. Availability, Updates and Changes

We may modify, update, suspend or discontinue the App or any feature at any time, with or without notice.
Updates may be required for continued use. Some updates may change or remove features, or require firmware or operating-system versions your device does not support.
We do not warrant uninterrupted or error-free availability. Maintenance, outages, network failures, store policies or device limitations may affect service.

12. Disclaimer of Warranties

To the maximum extent permitted by law, the App is provided "as is" and "as available", without warranties of any kind, express or implied, including implied warranties of merchantability, fitness for a particular purpose, accuracy, title and non-infringement.

We do not warrant that the App will meet your requirements, that readings or derived scores will be accurate or reliable, that operation will be uninterrupted, secure or error-free, or that data will never be lost.

Some jurisdictions do not allow the exclusion of certain warranties; in those jurisdictions, some of the above may not apply to you, and you may have additional statutory rights that these Terms do not limit.

13. Limitation of Liability

To the maximum extent permitted by law:

We are not liable for any indirect, incidental, special, consequential, exemplary or punitive damages, or for loss of profits, revenue, goodwill, data or anticipated savings, arising from or related to the App, even if advised of the possibility.
We are not liable for any personal injury, illness, health outcome or medical decision arising from your use of, or reliance on, the App, its readings or its derived scores.
We are not liable for loss or corruption of locally stored data, or for failures of Bluetooth connectivity, wearable hardware, firmware or third-party services.
Our total aggregate liability for all claims relating to the App is limited to the amount you paid us for the App in the twelve (12) months before the event giving rise to the claim.
Nothing in these Terms excludes or limits liability that cannot lawfully be excluded, including liability for death or personal injury caused by negligence, or for fraud.

14. Indemnity

You agree to indemnify and hold harmless Rexx, its officers, employees, contractors and licensors from any claim, damage, loss, liability or expense (including reasonable legal fees) arising from your misuse of the App, your breach of these Terms, your violation of any law, or your infringement of any third-party right.

15. Termination

You may stop using the App at any time and delete your account from within the App or by contacting support@rexx.com.
We may suspend or terminate your access immediately if you breach these Terms, create risk or legal exposure, or if we discontinue the App.
On termination, your licence ends and you must stop using the App. Account data will be handled as described in the Privacy Policy. Sections 2, 6.4–6.7, 9, 12, 13, 14, 16 and 17 survive termination.

16. Governing Law and Disputes

These Terms are governed by the laws of the jurisdiction in which Rexx is established, without regard to conflict-of-law rules.
The courts of that jurisdiction have exclusive jurisdiction, except where mandatory consumer-protection law entitles you to bring proceedings in your place of residence.
Before starting formal proceedings, you agree to contact us at support@rexx.com and attempt to resolve the dispute informally for at least thirty (30) days.

17. General

Changes to these Terms. We may update these Terms. Material changes will be notified in the App or by email before they take effect. Continued use after the effective date constitutes acceptance. If you disagree, stop using the App.
Severability. If any provision is held invalid, the rest remains in force.
No waiver. Failure to enforce a provision is not a waiver of it.
Assignment. You may not assign these Terms. We may assign them in connection with a merger, acquisition or sale of assets.
Entire agreement. These Terms and the Privacy Policy are the entire agreement between you and us regarding the App.
Language. These Terms are drafted in English; any translation is for convenience only.

18. App Store Terms

These Terms are between you and Rexx only, not with Apple Inc. or Google LLC.
Apple and Google have no obligation to provide maintenance or support for the App.
In the event of a failure to conform to any applicable warranty, you may notify Apple, and Apple may refund the purchase price; Apple has no other warranty obligation.
Apple and Google are not responsible for addressing any claim relating to the App, including product liability, legal or regulatory compliance, or intellectual-property infringement claims.
Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.
You represent that you are not located in a country subject to a U.S. Government embargo or designated as "terrorist supporting", and are not on any U.S. Government prohibited-party list.
You must comply with applicable third-party terms of service when using the App.

19. Contact

Rexx
Email: support@rexx.com