Tutanota vs Runbox

Tutanota (now known as Tuta) is a privacy-first communication service designed to keep your emails, calendars, and contacts completely confidential. Utilizing advanced, quantum-resistant encryption, it ensures that only you and your intended recipients can access your personal data. Built on open-source principles and hosted on secure servers in Germany that run entirely on renewable energy, Tutanota offers an ad-free experience with strict compliance to European privacy laws. It provides seamless cross-platform synchronization while eliminating tracking and data harvesting.

Runbox is an independent email hosting provider based in Norway that places a heavy emphasis on privacy, security, and environmental sustainability. Operating since 2000, it leverages strict Norwegian privacy laws and GDPR compliance to ensure user data remains confidential and protected from foreign surveillance. The service is fully powered by 100% renewable energy and operates on a carbon-negative footprint. Runbox offers an ad-free experience, custom domain support, and robust spam protection while maintaining full compatibility with standard email clients via IMAP, POP3, and SMTP.

• End-to-end encryption for emails and calendars
• Strict GDPR compliance and green hosting in Germany
• Open-source client applications
• Ad-free experience with no tracking

• Protected by strict Norwegian privacy laws and GDPR
• Powered by 100% renewable, carbon-negative energy
• Completely ad-free with no data tracking for advertising
• Supports custom domains and standard mail protocols

• Limited storage space on the free tier
• Does not natively support IMAP or POP3 protocols
• Search capabilities are limited due to client-side encryption

• No permanently free tier available
• Web interface feels somewhat traditional and dated compared to modern consumer apps
• Higher cost per storage gigabyte than major mainstream providers