Privacy Policy

Last updated: October 1, 2026

Lanterna ("we", "our", or "us") is a family screen-time management service. This policy explains what data we collect, how we use it, and your rights.

1. Data We Collect

• Account data: Email address, name, and hashed password when you sign up.
• Device identifiers: A unique device ID used to associate usage data with the correct device in a family.
• App & website usage: Daily time spent per app (Android) and per website domain (iOS), collected on-device and synced to our servers to power usage reports and enforce limits.
• Limit rules: The app limits and blocked domains configured by the family admin.
• Push notification tokens: FCM/APNs tokens used to deliver limit alerts and approval requests.

2. How We Use Your Data

• To provide screen-time reports and enforce app limits set by the family admin.
• To send push notifications for limit approvals and alerts.
• We do not sell, rent, or share your data with advertisers or third parties.

3. Children's Privacy (COPPA)

Lanterna is designed for family use. Children under 13 use the app under parental supervision. We do not knowingly collect personal information from children beyond what is necessary to operate the parental-control features. All child data is controlled by the parent/guardian account and may be deleted at any time.

4. Data Retention

Usage data is retained for up to 90 days. Account data is retained until you delete your account. You may request deletion by contacting us.

5. Security

Data is transmitted over HTTPS and stored in a secured database. Passwords are stored as bcrypt hashes and never in plaintext.

6. Your Rights

You may request access to, correction of, or deletion of your data at any time by emailing [email protected].

7. Contact

Francium Technologies
Email: [email protected]