Privacy Policy
Last updated: July 2026
Your privacy matters. This policy explains what data GymKynex collects, how we use it, and the choices you have. By using the app you agree to this policy.
1. Data we collect
We collect only what the app needs to work:
Account data (email, name), profile data you enter (goal, level, weight, height, training days, injuries), your workout logs, nutrition logs, body measurements, and coach conversations. If you choose to use them: photos you upload (meal photos for calorie estimates, progress photos, or a photo you send the coach), voice notes you record for the coach, and health data you import from Apple Health. All of these are optional — the app works without them.
2. How we use your data
Your data is used to run the app: build your plans, track progress, personalize the AI coach, and show your history. We do not sell your personal data to anyone.
3. Data isolation
Every account is fully isolated. Row-Level Security at the database level ensures no user can ever access another user's workouts, meals, measurements or conversations.
4. AI processing
When you use the AI coach or photo features, the relevant text or image is sent to our AI provider (Anthropic) to generate a response. When you send the coach a voice note, the audio is sent to our transcription provider (OpenAI) to convert it into text; only that text then goes to the coach. We do not keep a copy of the audio. This data is processed to give you a result and is handled according to each provider's data policies. Please avoid uploading sensitive personal documents unrelated to your fitness.
5. Storage and security
Your data — including photos and voice notes — is stored with our infrastructure provider (Supabase). It is encrypted at rest using AES-256 and encrypted in transit using TLS, always on. Photos are kept in private storage that requires an authenticated request tied to your account.
Row-Level Security means no other user can reach your data. In plain terms: your account is private, and only you can access it by signing in. For honesty we should be clear about one thing — encryption at rest protects your data if the physical storage were ever compromised, but it does not make your data invisible to us as the operator: to run the app (show your photos, let the coach read your history) our systems must be able to decrypt it. We access it only to operate and support the service, never to sell it. We support passkey sign-in (Face ID / fingerprint) for stronger account security.
6. Your rights
You can view and edit your profile data any time in Settings. You can request full deletion of your account and data — see our Data Deletion page.
7. Contact
Privacy questions? Email soporte@gymkynex.com.