ShiftGuard Privacy Policy

1. Scope

This addendum applies to the ShiftGuard iPhone app and to ShiftGuard support or privacy requests you choose to send to Synap1e.

2. Trip and plan data stored locally

ShiftGuard stores the itinerary details you enter or approve, onboarding answers, generated day plans, action completion, active-trip selection, app preferences, and local purchase-access records on your iPhone. This data is used to show and manage your trips and is not uploaded to a Synap1e account or app database.

3. Optional live flight lookup

When you choose live lookup, ShiftGuard sends a flight designator and departure date to a Synap1e-operated endpoint hosted by Vercel. That endpoint requests matching schedule and status information from Aviationstack, an APILayer service, and returns it to the app for your review. It does not receive your onboarding answers, generated plan, Apple Health data, or purchase information. Responses are marked no-store, and Synap1e does not maintain an application database or intentionally log request bodies for this feature. Hosting and network providers may process standard operational metadata such as IP address, timestamps, and error or security records under their own practices.

4. Optional Apple Health context

If you explicitly grant read permission, ShiftGuard can calculate recent average sleep duration and heart-rate variability from Apple Health as personal context. These values stay in memory on the iPhone, are not written to Apple Health, are not sent to Synap1e or the flight provider, and do not change your generated plan. You can use every trip-planning feature without granting Health access.

5. Notifications

If you grant permission and enable reminders, ShiftGuard schedules eligible light, low-light, caffeine, sleep, and wind-down notifications locally through iOS. Notification permission can be changed at any time in iOS Settings.

6. Purchases

Apple processes ShiftGuard Plus subscriptions and one-trip purchases. ShiftGuard reads verified StoreKit transaction and entitlement information needed to unlock access and records limited access state locally. Synap1e does not receive your payment-card details.

7. Analytics, advertising, and website visits

The ShiftGuard app includes no advertising or third-party app analytics SDKs and does not track you across other companies' apps or websites. If you visit this website, standard hosting, security, and performance records may be generated; the app does not send its trip, plan, or Health data to this website.

8. Retention and deletion

Local trip and plan records remain until you delete them, reset app data, or remove ShiftGuard, subject to iOS and Apple-managed backup behavior. Flight lookup requests are processed to answer the request and are not stored in a Synap1e application database. Support messages are kept only as needed to respond, maintain security, and meet legal obligations.

9. Your controls and contact

You can enter trips manually instead of using live lookup, decline or revoke Health and notification permissions, delete saved trips, reset local app data, remove the app, or contact privacy@synap1e.com about information you deliberately submitted in a support or privacy request.

10. Wellness limitation

ShiftGuard provides general, rule-based guidance about light, caffeine, meals, movement, and sleep timing. It is for informational purposes only and is not medical advice, diagnosis, or treatment.

11. App-specific addendum

12. Contact and policy links

For help with app issues, visit ShiftGuard Support. You can also review Terms of Service.