Legal

Privacy Policy

Last updated: 23 August 2026

Data Controller

Flarewatch Ltd

Flat 62, John Wetherby Court East, 22 High St, London, E15 2PP

Email: hello@flarewat.ch

1. Who we are and what this policy covers

FlareWatch is a health monitoring service that uses data from wearable devices to help people with chronic health conditions track and anticipate flare-ups. This policy explains what personal data Flarewatch Ltd ("we", "us", "our") collects, why we collect it, how we protect it, and your rights under UK data protection law (UK GDPR and the Data Protection Act 2018).

Please read this policy carefully before using FlareWatch. By creating an account and connecting your device, you give your explicit consent to us processing your health data as described here.

2. The data we collect

Account data

Health data from your wearable (special category data)

When you connect a wearable device, we receive and store the following metrics:

Health data you enter manually (special category data)

You may also choose to log the following directly in the app:

All manually entered data is optional and used solely to help contextualise your flare risk score.

We do not collect continuous heart rate readings, GPS location, audio, or any data not listed above.

3. How we collect your data

We collect health data through a secure OAuth 2.0 connection to your device manufacturer's API. This means you explicitly authorise FlareWatch to read your data from your device account (Oura, Fitbit, Whoop, Polar, Withings, or Garmin). We never receive your device account password — authentication is handled entirely by the device manufacturer.

You can revoke this access at any time through your device manufacturer's account settings.

4. Why we process your data and the legal basis

Purpose Data used Legal basis (UK GDPR)
Computing your personalised flare risk score Health metrics Explicit consent (Art. 6(1)(a) and Art. 9(2)(a))
Account management and authentication Username, password hash Contract — necessary to provide the service (Art. 6(1)(b))
Sending flare alert emails Alert email, flare score Explicit consent (Art. 6(1)(a))
Improving the algorithm Anonymised, aggregated metrics Legitimate interest (Art. 6(1)(f))

5. Who we share your data with

We do not sell, rent, or share your personal data with third parties for marketing. We use the following data processors to operate the service:

We may disclose your data if required to do so by law or in response to a valid request from a law enforcement authority.

6. How long we keep your data

7. International data transfers

Your data is hosted by Render Services Inc, based in the United States. We are in the process of establishing a formal Data Processing Agreement (DPA) with Render to cover these transfers in accordance with UK GDPR requirements. See render.com/privacy for details on Render's data practices.

8. Your rights

Under UK GDPR you have the following rights. Contact us at hello@flarewat.ch to exercise any of them — we will respond within one month.

9. Security

We take reasonable technical and organisational measures to protect your data, including:

In the event of a data breach likely to risk your rights and freedoms, we will notify you and the ICO within 72 hours as required by law.

10. Cookies

FlareWatch uses a single session cookie to keep you logged in. This cookie is strictly necessary for the service to function and does not track you across other websites. We do not use advertising or analytics cookies.

11. Children

FlareWatch is not intended for anyone under 18. We do not knowingly collect data from children. If you believe we have done so inadvertently, contact us and we will delete it promptly.

12. Changes to this policy

We may update this policy from time to time. We will notify you of significant changes by email or by posting a notice in the app. The "last updated" date at the top always reflects the current version.

13. How to complain

If you have concerns about how we handle your data, please contact us first at hello@flarewat.ch.

If you remain unsatisfied, you have the right to complain to the Information Commissioner's Office (ICO):