Privacy Policy
1. Who we are
Positura (“we”, “us”) provides posture coaching apps for iPhone and macOS using compatible earbuds. Our website is positura.fun.
2. v1 — local-first, no account
The current Positura release does not require an account or sign-in. Core posture coaching works offline. Raw head-motion samples (~25 Hz) are processed on your device and are never uploaded. Calibration angles and raw motion streams are not sent to our servers.
When your device has network access, the app may send anonymous usage statistics to api.positura.fun to help us understand how the product is used. This does not include your name, email, or Apple ID. We use a pseudonymous install identifier stored on your device.
3. Anonymous usage data (v1)
When sent, this may include:
- Product interaction events (e.g. app opened, calibration completed, monitoring started, screen viewed)
- Daily posture summaries as aggregate numbers only (minutes monitored, slouch count, session count, derived score — not individual slouch timestamps)
- Device context: app version, platform (iOS or macOS), device model, OS version, language, region, and timezone
Detailed session history, streaks, and notification content remain on your device unless you later opt into optional cloud features in a future release.
4. Crash diagnostics (v1)
To fix stability issues, the app may send crash reports and error diagnostics to Sentry when a failure occurs. This may include stack traces, app version, device model, OS version, and coarse platform tags. It does not include raw motion data, calibration values, your name, email, or Apple ID. Crash reporting requires network access and only runs when diagnostics are enabled in the build you installed.
5. What we do not collect (v1)
- No account, email, or Apple ID from the app
- Raw accelerometer or gyroscope streams from your earbuds
- Calibration baseline angles or settings blobs
- Location data, contacts, photos, or unrelated device content
- Advertising identifiers (IDFA) or cross-app tracking
6. Website
This marketing site uses Google Analytics 4 to understand aggregate traffic (pages viewed, referrers, device type, approximate geography). Google may set cookies or use similar technologies. We do not use advertising identifiers or cross-app tracking on the website. You can opt out via browser add-ons such as Google Analytics Opt-out.
Our web host may also record IP address, user agent, and requested URL in standard server logs for security and operations.
7. Future features
We may offer optional cloud backup and cross-device sync in a later release. If we do, this policy will be updated before those features ship, and they will remain opt-in.
8. Contact
Questions about this policy: hello@positura.fun.