TrueVital: Privacy Policy
Last updated: September 11, 2026
TrueVital ("we", "us") provides AI-assisted fitness tracking and coaching. This policy explains what we collect, how we use it, who we share it with, and your choices.
Data we collect
- Health & fitness data (from Apple Health, read-only, with your permission): heart rate, resting heart rate, heart rate variability (HRV), heart rate recovery, workouts (type, duration, distance, energy, HR samples), sleep stages and duration, steps, active/basal energy, exercise minutes, VO2 max, respiratory rate, blood oxygen, running form metrics, and body composition (height, weight, body fat, lean mass, waist).
- Moment-by-moment workout readings stay on your phone unless a chart needs them. Heart-rate samples are synced, because your trends and zones are computed from them. The rest (power, pace, cadence, stride length, ground contact time, vertical oscillation, respiratory rate, per-second distance) are read from Apple Health only when you ask the AI Coach to plot one, and only for the workout you asked about. Nothing else is uploaded, and the channels you never plot never leave your device.
- Where each reading came from. We also store the name of the app or device that recorded a reading (for example "Apple Watch", "Oura", "Garmin Connect"), so the app can show you where a number came from. We never store the personalized device name Apple Health supplies.
- Profile information (from Apple Health): date of birth (used as age), biological sex, height, and weight.
- Account & device identifiers: a per-install device identifier (Apple's
identifierForVendor) and an account/session token. - Coaching content: the messages you send to the AI Coach and the goals you create.
- Coach notes: short notes the AI Coach saves about your training (your schedule, preferences, routine, and any constraints or niggles you mention), so its later suggestions stay consistent with what you've told it. These are written by the coach from your chat messages, limited to 40 at a time, sent to our AI provider as part of your coaching prompts, and deleted when you delete your account.
- Usage records: which AI features you used and their token/cost totals, for billing and abuse prevention.
We do not write data back to Apple Health. We do not use advertising or third-party tracking SDKs, and we do not sell your data.
How we use your data
- Compute derived fitness metrics, trends, benchmarks, and your daily readiness score.
- Generate personalized coaching, goal recommendations, and the 3-day review.
- Maintain your account and weekly AI credit allowance.
Third-party AI processing
To generate recommendations, we send your goal description, profile attributes (age, sex, height and weight), the coach notes described above, and your health and fitness data to Anthropic, a third-party AI platform (the Claude API), which processes them to return coaching text and your daily review. What is sent depends on what you ask: your daily review receives summarized trends, while the AI Coach can look up the underlying detail: individual workouts including their time, duration, distance, pace and heart rate; per-night sleep including bed and wake times; and daily readings for the metrics you track. Anthropic acts as our processor for this purpose. Under its commercial terms it does not use this data to train its models and retains it only briefly for abuse monitoring; its privacy policy is published at https://www.anthropic.com/legal/privacy. We send only what is needed to generate the response; we do not send your name or email.
Your consent is required first. We do not send any of this data to the AI platform until you explicitly opt in. The app asks for your permission during onboarding (and again, in-app, before the first AI feature runs if you haven't yet decided), clearly stating what is shared and with whom. Nothing is sent to the AI provider (not for the coach, goal creation, or the daily review) unless you have granted consent. You can withdraw consent at any time in Settings → AI Coaching & Data Sharing, which immediately stops all data sharing with the AI platform and disables the AI features. This consent is separate from the HealthKit permission that lets the app read your health data into your own private account.
Storage and retention
Your data is stored securely on our backend, hosted with a third-party cloud infrastructure provider. We retain it until you delete your account. When you delete your account (Settings → Delete Account), we permanently remove your profile, goals, chat history, and all synced health data. We retain anonymized usage records (device identifier, feature, token/cost totals) needed to enforce the weekly AI credit allowance across reinstalls; these contain no health data.
Your choices and rights
- Access/permissions: manage Apple Health sharing in iOS Settings → Privacy & Security → Health → TrueVital.
- Deletion: delete your account and all associated personal and health data in-app at any time (Settings → Delete Account).
- Other requests: for any question about your data, or a request under a privacy law that applies where you live, contact us at support@derive.fit and we'll handle it.
Children
TrueVital is not directed to children under 13 (or the minimum age in your jurisdiction) and we do not knowingly collect their data.
Not medical advice
TrueVital provides general fitness information and AI-generated guidance. It is not medical advice and is not a substitute for a physician, physical therapist, or mental-health professional. For symptoms, pain, or any health concern, consult a qualified professional.