Privacy Policy

Last updated: January 31, 2026

Our Commitment to Your Privacy

At Flyweight Development Oy ("we", "our", or "us"), we believe privacy is a fundamental right, especially when it comes to children's data. Sleep Stars is designed from the ground up to be privacy-first.

The Short Version

  • We collect no personal data
  • All data stays on your device
  • We have no servers that store your information
  • We never sell, share, or transmit any data
  • ✓ No account or sign-up required
  • ✓ Works completely offline

Information We Do NOT Collect

Sleep Stars does not collect, store, or transmit any of the following:

  • • Personal information (names, emails, phone numbers)
  • • Location data
  • • Device identifiers or advertising IDs
  • • Usage analytics or behavioral data
  • • Photos, contacts, or other device content
  • • Sleep data or health information
  • • Any information about children using the app

We don't collect this information because we don't need it. Sleep Stars is a self-contained app that works entirely on your device.

Local Data Storage

Sleep Stars stores the following data locally on your device only:

  • • Child profiles (names and avatars you create)
  • • Sleep goal settings (bedtime and wake time)
  • • Sleep log entries (times you record)
  • • Star counts and badge progress
  • • Reward store items and settings
  • • App preferences

This data is stored using SQLite, a local database on your device. It is never transmitted to any server. If you uninstall the app, this data is permanently deleted.

No Third-Party Services

Sleep Stars does not integrate with any third-party analytics, advertising, or tracking services. We do not use:

  • • Google Analytics or Firebase Analytics
  • • Facebook SDK or Meta Pixel
  • • Advertising networks or ad tracking
  • • Crash reporting services that collect device data
  • • Social media integrations
  • • Any cloud storage or sync services

Children's Privacy (COPPA Compliance)

Sleep Stars is designed for use by children under the supervision of parents or guardians. We take children's privacy seriously and comply with the Children's Online Privacy Protection Act (COPPA) and similar regulations worldwide.

Since we do not collect any personal information from anyone—including children—there is no children's data to protect, share, or manage. The safest way to protect children's data is to never collect it in the first place.

App Store Purchases

When you purchase Sleep Stars through the Apple App Store or Google Play Store, your payment is processed by Apple or Google respectively. We do not receive or store any payment information, credit card numbers, or billing details. We only receive confirmation that a purchase was made.

For information about how Apple or Google handles your payment data, please refer to their respective privacy policies.

Internet Connection

Sleep Stars works completely offline. No internet connection is required to use the app after installation. The app does not make any network requests and does not transmit any data to any servers.

Data Deletion

Since all data is stored locally on your device:

  • To delete all data: Uninstall the app from your device
  • To delete a child's profile: Use the in-app profile management
  • To clear sleep history: Use the in-app data management options

There is no data on our servers to delete because we don't have servers that store your information.

Changes to This Policy

If we make changes to this privacy policy, we will update the "Last updated" date at the top of this page. We encourage you to review this policy periodically.

Our commitment to not collecting personal data will not change. Any future updates to Sleep Stars will maintain this privacy-first approach.

Contact Us

If you have any questions about this Privacy Policy or Sleep Stars, please contact us:

Email: support@flyweight.dev

Company: Flyweight Development Oy

Location: Finland, European Union

Your Rights

Under GDPR and other privacy regulations, you have various rights regarding your personal data. However, since Sleep Stars does not collect any personal data, these rights are automatically satisfied:

  • Right to Access: All your data is on your device—you have full access
  • Right to Rectification: You can edit all data in the app
  • Right to Erasure: Delete the app to erase all data
  • Right to Data Portability: Your data never leaves your device
  • Right to Object: We don't process data, so there's nothing to object to