Sealed Calendar

Your calendar, your data, your control. Military-grade encryption keeps your schedule completely private. Works offline. No accounts. No tracking.

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.