Solarium
Solarium is a fully decentralised, end-to-end encrypted, censorship-resistant instant messenger based on the Solana blockchain. Solarium is currently in alpha phase, running on the Solana devnet. All messages in Solarium are end-to-end encrypted using the XChaCha20-Poly1305 symmetric encryption algorithm, using a 256-bit content encryption key (CEK) that is shared for all messages in a given channel. The message content in Solarium is not directly signed, i.e. the data itself, once decrypted, does not contain details about the sender. Instead, the blockchain transaction that adds the message to the channel is signed by the sender.
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Brosix
Brosix Instant Messenger (IM) supports businesses to streamline and secure their team communication through private team communication networks. Brosix provides businesses with all of the tools they need to increase team productivity in one user friendly and fully encrypted platform, including file transfer, screen sharing, group and private chat, virtual whiteboard and more. Brosix IM’s private networks help businesses to increase team collaboration and efficiency, reduce overhead, and guarantee data privacy. Team networks take just minutes to set up, so businesses can immediately begin reaping the benefits of their all-in-one, and fully administrable communication network.
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SimpleX
The first messenger without user IDs.
Other apps have user IDs: Signal, Matrix, Session, Briar, Jami, Cwtch, etc. SimpleX does not, not even random numbers. This radically improves your privacy.
Many users asked: if SimpleX has no user identifiers, how can it know where to deliver messages?
To deliver mesages, instead of user IDs used by all other platforms, SimpleX uses temporary anonymous pairwise identifiers of message queues, separate for each of your connections — there are no long term identifiers.
You define which server(s) to use to receive the messages, your contacts — the servers you use to send the messages to them. Every conversation is likely to use two different servers.
This design prevents leaking any users' metadata on the application level. To further improve privacy and protect your IP address you can connect to messaging servers via Tor.
Only client devices store user profiles, contacts and groups; the messages are sent with 2-layer e2e encryption.
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xx messenger
A quantum leap in chat privacy, xx messenger brings you the decentralization, speed, privacy, and security required to protect your communications long-term. At this point in the digital world, our personal digital metadata, not just our messages, but data about who talks to whom, when, and where, has been marketed, auctioned, and monetized hundreds of thousands of times over. The world’s first end-to-end encrypted, metadata shredding, the quantum-secure messaging app is here, the xx messenger empowers users to create and correspond in confidence while simultaneously achieving the independence, speed, and security required to protect your communications far into the future. When using xx messenger, nobody can know who you communicate with. While all other messaging apps capture and potentially exploit information about your messaging patterns, xx network shreds this information by mixing messages through randomly-chosen xx network nodes around the world.
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