Privacy Policy

Last updated: 2 July 2026

LullCycle is designed to work without an account. Your sleep logs are stored on your device.

What we collect

Usage & product interaction (analytics) — to improve the app.
Device identifier (IDFA) — used for advertising measurement and attribution, only if you allow tracking when prompted (App Tracking Transparency).
Purchase history — to manage your subscription.
Crash & performance data — to keep the app stable.

Tracking

We use AppsFlyer to measure ad performance. You can decline tracking at any time in iOS Settings → Privacy & Security → Tracking. Declining does not limit core features.

Third parties

Analytics (PostHog), attribution (AppsFlyer), subscriptions (RevenueCat/Apple), crash reporting (Sentry). We do not sell your personal data.

Your rights & contact

Request deletion or ask questions at [email protected].