Privacy Policy

Last updated: 3 June 2026

This policy describes how Keith Fitness (“we”, “us”) handles information when you use Keith, an AI personal trainer delivered over WhatsApp, and related services at keithfitness.com.

Who we are

Keith Fitness operates the Keith WhatsApp coach and this website. For privacy questions or requests, contact: [email protected].

What Keith does

Keith is a coaching assistant. You message Keith on WhatsApp; replies are generated using AI and may use data you choose to connect (for example fitness activities from Strava or Garmin via our wearables integration).

Information we collect

WhatsApp identity — your phone number (WhatsApp user ID) so we can receive and send messages.
Messages and media — text you send, and optional voice notes, photos, or videos you choose to share (including meal photos for nutrition logging).
Profile and coaching data — goals, preferences, injuries, notes you save with commands like “remember: …”, and food log entries derived from your inputs.
Wearable data (if you connect it) — activity and health summaries from services you link (for example Strava or Garmin) through Open Wearables, only after you complete that provider’s authorization flow.
Technical data — basic server logs (timestamps, errors) needed to run and secure the service.

How we use information

To provide coaching replies and features you request.
To remember information you ask us to store for future conversations.
To show relevant training or nutrition context when you have connected wearable or logging features.
To operate, maintain, and improve the service (including fixing failures and abuse prevention).

AI and third-party services

We use trusted providers to run Keith. Depending on what you use, data may be processed by:

Meta (WhatsApp) — messaging delivery under WhatsApp’s own terms and privacy policy.
Google (Gemini) — to generate text replies and analyse images, audio, or video you send.
Open Wearables — to connect and sync data from fitness apps you authorize (e.g. Strava, Garmin).
Fitness providers you connect — each has its own privacy policy and controls; we only receive data you permit through OAuth.

We do not sell your personal information. We do not use your messages to train public AI models on behalf of third parties beyond what is required to process your request through the APIs above.

Where data is stored

Profile and coaching data are stored on servers we control (self-hosted infrastructure in the United Kingdom). Third-party processors may store or process data in other countries according to their policies.

How long we keep data

We keep your profile, memories, and food log while you use the service. You may ask us to delete your data. Server logs are retained for a limited period for security and troubleshooting, then rotated or deleted.

Your rights

If you are in the UK or EEA, you may have rights to access, correct, delete, or restrict processing of your personal data, and to object or withdraw consent where applicable. Contact [email protected] and we will respond within a reasonable time. You may also disconnect wearable apps at any time in the provider’s settings or by messaging Keith for guidance.

Security

We use HTTPS for web traffic and restrict server access. No system is perfectly secure; please avoid sending passwords, payment card numbers, or other highly sensitive credentials over WhatsApp.

Children

Keith is not intended for users under 16. We do not knowingly collect data from children. Contact us if you believe a child has used the service and we will delete relevant data.

Health disclaimer

Keith gives fitness and nutrition guidance, not medical advice. For injury, illness, or emergency symptoms, consult a qualified health professional.

Changes

We may update this policy from time to time. The “Last updated” date at the top will change when we do. Continued use of Keith after changes means you accept the updated policy.