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Legal

Privacy Policy

How MinusOne collects, uses, and protects your personal information.

Last updated: 2026-03-31

MinusOne protects your privacy through architecture, not promises.

Our Commitment

  • MinusOne does not read your entries.
  • Every diary entry is encrypted on your device (AES-256-GCM) before it is stored. Only encrypted data is transmitted to the server, and the decryption key never leaves your device.
  • We cannot see your entries. It is technically impossible for us to do so.

Information We Collect

  • Account information: When you sign in with a social provider (Google, Apple, Kakao, Facebook), we receive your name and email address.
  • Usage information: We collect the minimum metadata required to operate the service — for example, dates and counts of entries. We do not collect the content of your entries.
  • Device information: For service stability, we collect your app version and operating system.
  • Billing information: Premium subscriptions are processed through RevenueCat. Payment details are never stored on our servers.

How We Use Your Information

  • Account authentication and service delivery
  • End-to-end encrypted multi-device sync
  • Customer support
  • Service-quality improvement, using aggregated and anonymized data only

Sharing With Third Parties

We do not share your personal information with third parties, except in the following cases:

  • When required by law or legal process
  • With partners essential to operating the service (cloud infrastructure, payment processing). These partners only have access to the minimum information required for their function.

Data Retention

  • When you delete your account, all personal information and encrypted data are permanently deleted within 30 days.
  • Information that must be retained by law is kept only for the period required by that law.

Your Rights

  • You can delete your account at any time from within the app's settings.
  • You can request to view, correct, or delete the personal information we hold about you.
  • You can withdraw your consent to processing at any time.

Contact

  • Data Protection Officer: MinusOne Team
  • Email: manager@dawnlab.life
  • Response time: within 5 business days

This policy may be updated without prior notice. For material changes, we will notify you inside the app.