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Privacy

Apple Health is not uploaded.

ShiftNight is built to be useful without turning your sleep into a data business. Apple Health is not uploaded to ShiftNight servers. Detailed diagnostics sync only after consent and stay bounded to disclosed fields.

Privacy Policy

Last updated: May 5, 2026

The short version

Apple Health data is not uploaded to ShiftNight servers. If you opt in to detailed diagnostics, ShiftNight may sync selected schedule dates, manual sleep or Sleep Mode summaries, onboarding choices, crashes, and diagnostics to operate and improve the app. We don't sell data or use it for advertising.

What stays out of ShiftNight servers

  • HealthKit samples and sample identifiers
  • Apple Watch sleep stages
  • Heart rate, HRV, respiratory rate, SpO2, wrist temperature, and environmental audio
  • Free-text notes, raw mood text, and raw onboarding model dumps

Core app data is stored locally using Apple's SwiftData framework. If you enable iCloud, it backs up via Apple's CloudKit under your Apple ID. CloudKit backup is separate from ShiftNight analytics and backend diagnostics.

What we collect

We use PostHog for pseudonymous usage analytics. This includes:

  • A pseudonymous identifier and app session identifiers
  • Which screens, routes, and app actions you use
  • App crashes and performance diagnostics
  • Device type, iOS version, app version, build number, and build channel

If you subscribe to ShiftNight Premium, your subscription status and purchase history are synced to our server so we can verify your subscription across devices. This is linked to an anonymous user ID, not your name or email.

If you opt in to detailed diagnostics, ShiftNight may also upload selected schedule dates, manual sleep or Sleep Mode start and end times, duration, mood and restedness ratings, onboarding preference choices, generated recommendation-window context, crash context, and diagnostic breadcrumbs. These uploads use explicit consent, bounded fields, 90-day raw retention for exact telemetry, and audited backend access.

Third-party services

  • Apple HealthKit: Read-only access to sleep analysis and biometric data. HealthKit samples, stages, biometrics, and sample identifiers stay out of ShiftNight servers.
  • Apple CloudKit: Optional iCloud backup of app data. Encrypted under your Apple ID.
  • PostHog: Pseudonymous usage analytics. No HealthKit samples, biometrics, audio, free text, or raw onboarding dumps.
  • Supabase: Subscription verification, account lifecycle, diagnostic uploads, and consent-gated detailed telemetry.

Data deletion

You can delete all your data at any time from Settings within the app. This removes all local data immediately. If you have iCloud backup enabled, the data will also be removed from iCloud. Account deletion also purges ShiftNight server-side account, subscription, diagnostic, and consented telemetry rows tied to your app account.

Contact

Questions about privacy? Email us at team@shiftnight.com.