Terms of service

Terms of using Kaizin

Last updated 1 November 2026

1. Who these terms are with

These terms are between you and Olympus Premium Health Limited, a company registered in England and Wales (company number 13621708), registered office 82A James Carter Road, Mildenhall, Bury St Edmunds, Suffolk, IP28 7DE ("we", "us"). By creating an account you agree to them. Our privacy policy explains how we handle your data.

2. Who can use Kaizin

You must be 18 or over and live in the UK. You are responsible for keeping access to your email and your iPhone secure, because that is how you sign in.

3. What Kaizin does

• Reads the results in blood test reports you upload and shows them against the lab's reference ranges.
• Has a GMC-registered doctor review your panel, recommend what to change, and decide when to retest the markers that were out of range.
• Shows readings from Apple Health, Oura or your own entries against your own normal.
• Offers general wellness tips and guided breathing.

Results are read automatically from your PDF. Always check them against the original report, and tell us if anything looks wrong.

4. What Kaizin is not

Kaizin doesn't diagnose, treat or monitor any medical condition, and it doesn't prescribe medicines. Our doctor's review is general lifestyle guidance based on the results you upload. The written review is not a consultation, and it doesn't create a doctor-patient relationship for your wider care. Ultimate includes two video consultations with a GP, which are separate from the written review. Wearable readings are estimates from consumer devices, not medical measurements. Don't stop or change any treatment because of something in Kaizin without speaking to your own doctor.

5. Your content

You own the results and data you add. You give us permission to store and process them only to provide Kaizin to you, as described in the privacy policy. Only upload your own results.

6. Fair use

Don't misuse Kaizin: don't try to access other people's data, interfere with the service, reverse engineer it, or use it for anything unlawful. We may suspend an account that does.

7. Connected services

Apple Health and Oura are run by other companies under their own terms. Oura only shares data while you have an active Oura Membership. We are not responsible for their availability or accuracy. You can disconnect them at any time.

8. Paid plans

Track is £15 a month. Core is in early access and is not yet on sale; founding testers are told the price before they pay. Core Plus and Ultimate are not yet on sale, and every plan shows its price at checkout before you pay. You can cancel within 14 days of paying for a full refund, and after that from Manage billing on your account page. If a laboratory test included in your plan cannot be provided by the date your doctor set, you can choose a full refund or a later date. Your statutory rights as a UK consumer are not affected.

9. Changes and availability

We are improving Kaizin all the time and may change or remove features. We will give you reasonable notice of changes that affect you significantly. We aim to keep Kaizin available but can't promise it will always be uninterrupted.

10. Our responsibility to you

We provide Kaizin with reasonable care and skill. We are not responsible for losses that were not foreseeable, for decisions you make without speaking to your own doctor, or for problems caused by services we don't control. Nothing in these terms limits our liability for death or personal injury caused by our negligence, for fraud, or for anything else that can't be limited under English law.

11. Ending your account

You can stop using Kaizin and ask us to delete your account at any time by emailing hello@kaizin.health. We may close an account that breaks these terms, and will tell you why.

12. The law

These terms are governed by the law of England and Wales. If you live in Scotland or Northern Ireland, you can also bring a claim in your local courts.

13. Contact

Email hello@kaizin.health.