Last updated: May 2026
1. WHO WE ARE
Nocturne is a sleep wellness iOS application developed by an independent developer. If you have any questions about this policy, contact us at: privacy@nocturneapp.co.uk
2. WHAT DATA WE COLLECT
Nocturne collects the following data only on your device:
• Motion data — used to detect sleep disturbances, movement spikes, and phone pick-ups during a sleep session. This data is processed locally and never transmitted.
• Sleep session records — start time, end time, duration, quality score, and interruption events. Stored locally on your device only.
We do NOT collect:
• Your name, email address, or any identifying information
• Location data
• Health or HealthKit data
• Contacts, camera, or microphone access
• Any analytics or usage telemetry
3. HOW WE USE YOUR DATA
All data is used solely to provide core app features:
• Tracking sleep sessions and calculating a quality score
• Displaying sleep history and trends in the Analytics tab
• Detecting movement to log sleep interruptions
4. DATA STORAGE
All data is stored locally on your iPhone using Apple's standard on-device storage. It is never uploaded to any server, cloud service, or third party. You can delete all app data at any time by deleting the Nocturne app.
5. THIRD-PARTY SERVICES
Nocturne does not integrate with any third-party analytics, advertising, or data-sharing services. The app is distributed via the Apple App Store — Apple's own privacy practices apply to the purchase and download. See apple.com/legal/privacy for details.
6. IN-APP PURCHASES
Nocturne offers a one-time lifetime purchase (£10.99) processed entirely by Apple through the App Store. We do not handle or store any payment information.
7. CHILDREN'S PRIVACY
Nocturne is not directed at children under 13. We do not knowingly collect data from children.
8. YOUR RIGHTS
Since no personal data is collected or transmitted, you retain full control of all data through your device. If you are in the UK or EU, your rights under GDPR and UK GDPR are satisfied by default. Contact us with any concerns.
9. CHANGES TO THIS POLICY
If we make material changes, we will update the date at the top of this page. Continued use of the app after changes constitutes acceptance of the updated policy.
10. CONTACT
For any questions or concerns:
Email: nocturneapp@hotmail.com