Last updated: March 2025
Kin is built with privacy at its core. We believe your fitness data is personal and should stay that way.
All of your data — workouts, meals, notes, and preferences — is stored locally on your device. We do not collect, upload, or store your personal fitness data on our servers.
Kin uses AI to provide coaching and insights. Our API key is enterprise-grade: your conversations and data are never used to train AI models, never stored by the AI provider, and never shared with third parties.
We collect only the minimum information necessary to operate the service:
When you use voice to log activities, audio is processed on-device or via secure transcription and immediately discarded. We do not store audio recordings.
Kin uses Apple for authentication and subscription management. Apple's privacy practices are governed by their own privacy policy. We do not use any third-party advertising or tracking services.
Since your data is stored locally, deleting the app removes your data. You can also delete your account from within the app settings, which removes your authentication credentials from our system.
We may update this privacy policy from time to time. We will notify you of any significant changes through the app.
If you have questions about this privacy policy, contact us at artemis.ops@proton.me.