Last updated: 29 July 2026
Readiness is built on a simple principle: your health data belongs to you. We collect only what is necessary to calculate your daily readiness score and personalise your coaching. We never sell your data, never share it with advertisers, and never use it for purposes beyond the app.
Health & fitness data (Apple Health / HealthKit)
This data is read directly from Apple Health on your device. It is processed locally to produce your readiness score and is only uploaded to our servers if you are signed in and have an active session.
Strava data (optional)
Strava connection is optional. If connected, we fetch your recent activities via the Strava API to calculate training load and acute:chronic ratio. You can disconnect Strava at any time from your profile.
Account data
Profile data is stored on our secure servers (Supabase) solely to personalise your readiness context and coaching recommendations.
Usage data
We may collect anonymous crash reports and performance metrics to improve app stability. This data cannot be linked back to you personally.
We do not use your data for advertising, profiling, or any purpose unrelated to providing the Readiness app service.
Account and score data is stored on Supabase servers in the EU. All data in transit is encrypted via TLS. Health data is processed on your device where possible and is never stored in plain text on our servers.
We retain your data for as long as your account is active. You can request deletion at any time (see Section 6).
Readiness uses Anthropic's Claude to turn your numbers into plain-English coaching. When a daily insight, morning briefing, weekly report, or coach chat reply is generated, we send the relevant metrics — your heart rate variability, resting heart rate, sleep duration and efficiency, and your readiness scores — to Anthropic's API, together with any life events you have logged (such as alcohol, illness, or travel), since those are what let the coaching explain a change rather than just report it. In Coach Chat we also include your first name, so the reply can address you directly, along with the messages you send.
We do not send your email address or any account identifier. Anthropic processes this data solely to generate the text you see, and not for advertising. Under Anthropic's API terms, data sent through the Claude platform is excluded from model training.
Your readiness score and its Recovery, Sleep, and Stress breakdown are calculated on your device from Apple Health data. Anthropic is involved only when an AI feature produces text for you.
Readiness is not intended for children under 13. We do not knowingly collect personal data from children under 13. If you believe we have inadvertently collected such data, please contact us immediately.
You have the right to access, correct, or delete your personal data at any time.
We may update this policy from time to time. Significant changes will be communicated via in-app notification or email. Continued use of the app after changes constitutes acceptance of the updated policy.
If you have any questions about this privacy policy or how we handle your data, please contact us: