Privacy Policy

This Privacy Policy explains how Butter Health ("we", "us", "our") handles information when you use our clinical document summarisation tool ("Butter"). We have written this in plain English because we believe you should be able to understand it easily.

Butter is designed specifically for clinical professionals in the UK. We take your privacy, and the privacy of your clients, extremely seriously.

1. Who we are

Butter Health is a clinical productivity tool operated in the United Kingdom. Our ICO registration number will be added here once registration is complete.

Contact us: hello@butterhealth.app

2. What Butter does — and does not do

Butter allows clinical professionals to upload background documents (such as GP letters, school reports, EHCPs, and assessment reports) and receive an AI-generated structured summary of those documents.

We do not share your data with third parties, except as described in Section 5 below.

3. What information is processed

3a. Documents you upload

When you use Butter, you upload clinical documents containing personal data relating to your clients. This may include special category data under UK GDPR (health and education information). This data is processed solely for the purpose of generating a summary. It is not stored, retained, or used for any other purpose.

3b. Account and usage information

We may collect basic information when you sign up or use Butter, such as your email address, profession type, and usage patterns. This is used solely to operate and improve the service.

3c. API keys

If you provide an Anthropic API key to use Butter, this is processed only within your browser. It is never sent to our servers.

4. Our role under UK GDPR

You (the clinician) are the data controller — you decide what documents to upload and are responsible for ensuring you have the right to share that information with a third-party tool.

We (Butter Health) act as a data processor — we process the documents on your instruction, solely to generate a summary.

By using Butter, you confirm that you have the appropriate authority, consent, or professional basis to share the documents you upload.

5. Third parties we work with

Anthropic (AI processing)

Butter uses the Anthropic API to generate summaries. Documents you upload are transmitted to Anthropic's servers for processing. Anthropic operates under a zero data retention policy for API requests — your documents are not stored or used for model training. We have a Data Processing Agreement in place with Anthropic. Their privacy policy is available at anthropic.com/privacy.

Netlify (hosting)

Our application is hosted by Netlify. Netlify may process standard web request data (such as IP addresses) as part of hosting. Netlify does not have access to documents you upload. Their privacy policy is at netlify.com/privacy.

6. Legal basis for processing

We process personal data on the basis of legitimate interests (to provide the summarisation service you have requested) and contract (to fulfil our agreement with you as a user of Butter). You, as data controller, are responsible for identifying your own legal basis for sharing client data with Butter.

7. Data retention

We do not retain the documents you upload or the summaries generated from them. These are processed and discarded immediately.

Account-related data (such as your email address and subscription details) is retained for as long as your account is active, and for up to 12 months after account closure for legal and administrative purposes.

8. Your rights under UK GDPR

You have the right to access, correct, delete, or restrict the data we hold about you (your account information). You also have the right to data portability and to object to processing. To exercise any of these rights, contact us at hello@butterhealth.app. We will respond within 30 days.

You have the right to lodge a complaint with the Information Commissioner's Office (ICO) at ico.org.uk if you believe we have not handled your data correctly.

9. Security

All data is transmitted over encrypted HTTPS connections. Documents are never written to disk on our servers. We recommend using Butter only on secure, private networks and in accordance with your organisation's information security policies.

10. Children's data

Butter is designed for use by clinical professionals and is not intended to be accessed directly by children. Clinical documents relating to children may be uploaded by professionals as part of their work. Such documents are processed in the same way as all uploads — they are not stored or retained.

11. Changes to this policy

We may update this Privacy Policy from time to time. We will update the "last updated" date at the top when we do. If we make significant changes, we will notify users by email where possible.

12. Contact us

If you have any questions about this Privacy Policy, please contact us:

Email: hello@butterhealth.app
Website: butterhealth.app

If you have a complaint, you also have the right to contact the ICO directly at ico.org.uk or by calling 0303 123 1113.