1. Provider
Nod (the "App") is provided by Gigaptera ("we", "us"). This policy describes how the App handles information about you.
Privacy Policy
Privacy Policy
Nod runs posture detection entirely on your device and keeps only the minimum data needed to function. This policy is written to be specific about what we collect — and what we never do.
Last updated: April 27, 2026
2. Information processed on your device
The App processes the following on your iPhone, only as needed for posture detection and display:
- Head and device orientation read from AirPods and iPhone motion sensors
- Walking / stationary activity classification from CoreMotion
- Your in-app settings (sensitivity, cooldown, alert types, quiet hours, etc.)
- Timestamps and counts of alerts
- App Store subscription entitlement status (read via StoreKit)
3. Information we do not collect
The App does not collect, transmit, or store any of the following:
- Photos or camera frames
- Audio recordings from the microphone
- Location
- Contacts, calendar, or HealthKit data
- Your name or email address (unless you submit it through the contact form)
4. On-device processing
Posture detection, alert evaluation, and history are computed and stored entirely on your iPhone. None of this data is sent to our servers or to any third-party server.
5. Third-party services
The App relies on the following Apple services, governed by Apple's own Privacy Policy:
- App Store / StoreKit, for subscription purchase, restore, and entitlement
- UNUserNotificationCenter, for delivering local notifications
- CMHeadphoneMotionManager / CMMotionActivityManager, for motion data
6. Retention and deletion
On-device measurements remain on your iPhone until you delete them. Open the App's settings and tap "Delete measurement data" to erase all measurement and alert history. Uninstalling the App removes all of its local data.
7. Children
The App is not directed to children under 13 (or the equivalent age threshold under your local law).
8. Your rights
Because the App does not transmit personal data off your device, the most direct way to exercise data rights is to delete data from within the App or uninstall it. For any additional request, contact us via the form below.
9. Contact
Questions about this policy can be sent through the contact page.
10. Changes
We may update this policy. Material changes will be reflected by updating the "Last updated" date at the top of this page.