Cardia — Privacy
I'm an indie dev. I make Cardia alone (under the name Koirala Studio). This page exists because Apple and privacy laws want one.
Short version
No account. Your HR and HRV readings stay on your iPhone. The camera is used only to measure pulse — Cardia does not record or upload video.
What stays on your device
Heart rate and HRV readings, optional tags (for example morning, after coffee, after exercise), timestamps, and trend history live in Cardia's sandboxed storage on your phone. Delete the app and that local data is gone (your own backups may still include it).
What leaves your device
Pulse detection runs on your phone. Readings are not sent to a wellness or health API I run.
If you subscribe, Apple handles payment and RevenueCat helps verify the purchase — they get a random ID and purchase info, not your readings.
Permissions
Camera — to read your pulse via the camera and flash (photoplethysmography). Live detection only; no video or audio is stored or uploaded.
What I don't collect
- Your name, email, or an account login (there's no account).
- Your location, contacts, or HealthKit data.
- Anything used to track you across other apps for advertising.
I don't sell data.
What Apple sees on its own
When you download Cardia, Apple processes your App Store account, the download, and any crash reports you choose to share. See apple.com/legal/privacy.
Kids
Cardia isn't designed for or directed at children under 13. It's a wellness tool for adults — not a medical device and not for kids.
Contact
Email support@koirala.studio. Koirala Studio · Ontario, Canada.