Privacy policy

Lull · Effective July 26, 2026

Lull is built to know as little about you as possible, especially during one of the most personal moments there is. Here is the complete picture.

What stays on your phone

Your timed waves, session history, and your midwife's phone number are stored only on your phone. They are never uploaded to us. If you delete the app, that data is deleted with it.

What we don't do

• No accounts. You never give us your name or email to use the app.
• No ads and no ad tracking.
• No health data leaves your phone. Lull does not connect to HealthKit.
• We never sell data, because we barely have any.

Purchases

Payments are processed by Apple. To restore your purchase across devices, we use RevenueCat, which receives your purchase receipt and a random identifier, never your name or Apple ID. You can read the RevenueCat privacy policy.

Usage analytics

The app may collect anonymous usage events (for example, that a wave was timed) to help us understand what to improve. These events carry a random identifier, not your identity, and are never used to track you across other apps or websites. The contents of your sessions and your contact's number are never part of these events.

Questions or requests

Write to [email protected] and a human will answer.

If this policy changes, the new version will be posted here with a new effective date.