Communication

Mozilla Thunderbird is a free, open-source email client that allows users to manage multiple email accounts in one place. It features a customizable interface, advanced search options, and robust security measures.

Signal is an instant messaging app free of charge that offers end-to-end encryption to protect your privacy. It allows you to send texts, photos, videos, voice notes, and files securely without worrying about surveillance or data collection.

Protect your privacy with Proton Mail—a secure, encrypted email service that keeps your conversations confidential and your data safe across all your devices: Windows, macOS, Linux, Android, iOS and as a web service.

Manage email securely with K-9 Mail, a free, open-source Android app that puts privacy first, offering control, efficiency, and reliability without unnecessary extras. It can manage multiple email accounts.

Communicate freely with Jami, a privacy-focused app that lets users chat, make audio or video calls, and share files without phone numbers or central servers, using encrypted peer-to-peer connections to keep conversations private and secure.

Protect your conversations with Olvid—a secure, metadata-free messaging app designed to safeguard your privacy without phone numbers, servers, or tracking. For Android, iOS, Windows, macOS, and Linux.