Matrix is an open protocol for real-time communication. It is designed to allow users with different service providers to communicate through online chat, Voice Over, and Video. Their goal is streamline communication across different service providers.

Function X is a decentralized communication network designed to work with blockchain-based phones. Function X is being developed by Pundi X, an Indonesian company that makes point of sale solutions for merchants that allow them to accept cryptocurrencies. The company has announced plans to create the Blok on Blok (BOB) and XPOS phones, that will operate as nodes on their platform, and will provide a variety of services.

Keybase is an encrypted messaging platform that allows groups of people to communicate and send files more securely than with Slack. Keybase has partnered with Stellar to enable Lumen holders to better manage their private keys and send funds more easily. When users set up a new device with Keybase, it automatically has access to their Stellar funds.