Privacy: Encrypted Messaging

Encrypted Instant Messaging

Criteria Jami Matrix Session Signal Telegram Threema Wire XMPP
Audited? No No No Yes No Yes Yes No
Available on Debian? Yes Yes Yes Yes Yes No, web only Yes Yes
Available on Mac? Yes Yes Yes Yes Yes No, web only Yes Yes
Available on Windows? Yes Yes Yes Yes Yes No, web only Yes Yes
Available on Android? Yes Yes Yes Yes Yes Yes Yes Yes
Available in F-Droid (Android Only)? Yes Some clients Yes but directly No Yes No No Some clients
Available on iOS? Yes Yes Yes Yes Yes Yes Yes Yes
Based in 5/9/14 Eyes? No Depends, default server is Yes Yes Yes No Yes Depends on the server
Decentralized? Yes Yes Yes No No No No Yes
Phone number or username? Username Username Username Phone number Both (phone number required) Username Username Username
Open Source? Yes Yes Yes Client only, server code has not been updated publicly Client only, server proprietary Yes Yes Yes
Resists/obscures/does not log metadata? No No Yes No No Unknown No No
Additional notes? Peer-to-peer Matrix is the protocol, not the client Allegations of the developer's questionable ethics Questionable business practices Not encrypted by default Questionable business practices XMPP is the protocol, not the client
Can be self-hosted Still in beta, some features are not available and some bugs may exist The company can access your keys

Encrypted Email

Criteria Criptext CTemplar Lavabit Mailbox.org ProtonMail Riseup Tutanota
Audited? No Yes No No Yes No Yes
Available on Debian? Yes Yes No No No No Yes
Available on Mac? Yes Yes No No No No Yes
Available on Windows? Yes Yes No No No No Yes
Available on Android? Yes Yes No No Yes No Yes
Available in F-Droid (Android Only)? No Yes No No No No Yes
Available on iOS? Yes Yes No No Yes No Yes
Based in 5/9/14 Eyes? Yes No Yes Yes No Yes Yes
Free plan available? Yes Yes No No Yes Yes Yes
Non-users can initiate secure communication? No Yes No Yes Yes Unclear No
Additional notes? Still in beta Includes VPN service with all plans Additional requirements to sign up Currently being required to log data on communication with non-Tutanota users agains ttheir will, court case ongoing
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