Tutanota vs ProtonMail

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.

ProtonMail is the world's largest secure email service, designed to keep your private communications truly private through end-to-end encryption and zero-access architecture. Based in Switzerland, it ensures your sensitive data remains shielded from third-party tracking, advertising algorithms, and unauthorized surveillance. With apps available across web, desktop, and mobile devices, it seamlessly integrates advanced cryptographic security into your daily workflow without sacrificing ease of use. Users can easily send encrypted emails to anyone, manage custom domains, and organize their inbox with modern productivity features.

• 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

• End-to-end and zero-access encryption
• Protected by strict Swiss privacy laws
• Open-source and independently audited apps
• Free tier available with no ads

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

• Free tier has limited storage and features
• Advanced features require a paid subscription
• No native IMAP/POP3 support without a bridge app