Apps to Encrypted Email

Autistici / Inventati is a platform dedicated to providing secure and private digital tools primarily for activists, social movements, and collectives globally. It offers a suite of services including encrypted webmail, web hosting, and anonymity tools, emphasizing user privacy and self-defense against surveillance.

Email.biz offers a secure and privacy-focused email service designed for businesses and individuals prioritizing data protection and generic domain identities. It provides essential communication tools including encrypted email, calendar, and contact management, with integrations for enhanced productivity.

Zimbra Collaboration Suite is a comprehensive open source email and collaboration platform designed for businesses. It provides a secure and feature-rich environment for email, calendaring, contacts, tasks, and file sharing, supporting on-premises and cloud deployments.

GMX Webmail provides a reliable and feature-rich free email service. With strong privacy features, integrated cloud storage, and tools like a calendar and mail collector, it offers a comprehensive suite for managing digital communication and files.

Apple Mail is the default email client for macOS, iOS, and watchOS, offering a seamless and integrated email experience across Apple devices with features like rich text editing, multiple account support, and robust organization tools.

Outlook.com is a free, personal webmail service offered by Microsoft, providing robust email management with integrated calendar, contacts, and cloud storage.

Lavabit was a highly secure, privacy-focused webmail service known for its strong encryption and commitment to user data protection, which ceased operations in 2013.