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As of 2025-05-23 17:14
prices & availability might be subject to change.
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Messenger & Conferences

Messenger with encryption

2025-05-11

XMPP/Jabber

2025-05-15

The following apps support the XMPP protocol, originally known as Jabber. This is one of the oldest protocols in the instant-messaging world, but still very fresh and constantly being improved.

Matrix/riot/Element

2025-05-20

These are clients for the Matrix protocol. Don't mind the triple naming – it seems they like to rename the project a lot ;)

Nostr

2025-05-08

Self-description: „Nostr is an open protocol that is able to create a censorship-resistant global "social" network, transferring notes and other stuff using relays. It doesn't rely on any trusted central server, hence it is resilient; it is based on cryptographic keys and signatures, so it is tamperproof; it does not rely on P2P techniques, therefore it works.“

Miscellaneous encrypted messenger

2025-05-16

Video and Audio Conferences

2025-05-15

Further Readings:

2025-05-22