Tuta Calendar

Tuta Calendar offers a zero-knowledge, quantum-safe encrypted solution to organize your personal and professional events, ensuring your schedule remains private and secure. All your events, invitations, and shared calendars are automatically end-to-end encrypted, meaning your data belongs only to you. Its intuitive design allows for easy planning of appointments, business meetings, and recurring tasks.

Key benefits include:

• Secure push notifications that respect your privacy, even from the OS.
• Two-factor authentication for maximum login security.
• Cross-platform availability with free open source desktop clients and mobile apps for Android, iPhone, Windows, macOS, and Linux.
• Multi-user support for securely sharing calendars with different access rights.
• Seamless integration with encrypted email and contacts for confidential communication in one place.
• A strong focus on privacy, offering an alternative to Big Tech surveillance and adhering to GDPR for business users, ensuring your sensitive information remains confidential.