Sealed Calendar

Sealed Calendar is the calendar app for those who value privacy above all else.

WHY SEALED CALENDAR?

In a world where every app wants your data, Sealed Calendar is different. We don't want your data. We can't even see your data.

TRUE PRIVACY
- Zero data collection
- No analytics or tracking
- No accounts or sign-ups required
- Works completely offline
- No cloud dependency

MILITARY-GRADE SECURITY
- End-to-end encryption using XSalsa20-Poly1305
- Your passcode protects everything
- Optional Face ID / Touch ID unlock
- Zero-knowledge architecture

FULL-FEATURED CALENDAR
- Multiple calendars with custom colors
- Event reminders and notifications
- Attach documents and images (all encrypted)
- All-day and timed events
- Recurring events (daily, weekly, monthly, yearly)
- Search across all your events
- Day, week, month, and agenda views

YOUR DATA, YOUR CONTROL
- All data stays on your device
- Export encrypted backups anytime
- Transfer to new devices via QR code
- Delete everything with one tap
- No account needed - ever

DEVICE-TO-DEVICE SYNC
- Optional sync between your devices
- Self-hosted - you control the server
- No third-party cloud services
- End-to-end encrypted transfers

WHO IS THIS FOR?
- Privacy advocates
- Security professionals
- Journalists and activists
- Anyone tired of corporate surveillance
- People who value digital autonomy

Sealed Calendar proves that you don't have to sacrifice features for privacy. Your schedule is personal. Keep it that way.