European Google Calendar Alternatives

Kolab Now offers a comprehensive and secure groupware solution, meticulously engineered and hosted in Switzerland to ensure your data privacy. This open-source platform provides a full suite of essential tools for individuals and teams, including:

• Secure Email: Robust email hosting with strong encryption and privacy features.
• Integrated Calendar: Manage your schedule, share calendars, and coordinate events seamlessly.
• Contacts Management: Keep your address book organized and accessible across devices.
• Task Lists: Stay on top of your to-dos with integrated task management.
• File Storage: Securely store and share your files within the Kolab Now environment.

Built on open standards, Kolab Now ensures interoperability and allows you to access your data using your preferred clients. It's an ideal choice for those who value data sovereignty, security, and a complete set of tools for effective collaboration and personal organization. Focus on privacy is paramount, making it a trustworthy alternative to mainstream cloud services.

Proton Calendar offers a secure way to manage your schedule, ensuring your life remains your business. Your data belongs to you, not advertisers, thanks to robust encryption. Based in Switzerland, all user data is protected by strict Swiss privacy laws. This online calendar automatically secures all your events with end-to-end encryption, and events from other calendars are protected with zero-knowledge encryption. This means event details like title, description, location, and invitees are unreadable even by Proton.

Key features include:

• Free access: A free calendar app is available for everyone, with paid options for more features.
• Seamless integration: Works with Proton Mail for sending secure event invites and adding events from your inbox.
• Efficient scheduling: Quickly add events, modify invitations, and set multiple reminders.
• Privacy by default: Combines traditional calendar functionality with strong privacy measures.

Built by the team behind Proton Mail, the world’s largest encrypted email service, Proton Calendar is part of a suite of privacy-focused services trusted by over 100 million users.

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.