Viber
Freemium
Viber Free Messenger and Phone Calls.
Matrix.org
Open Source
Matrix is an open protocol for real-time communication. It is designed to allow users with accounts at one communications service provider to communicate with…
Flock
Freemium
Flock is a communication app for teams. Packed with tons of productivity features, Flock drives efficiency and boosts speed of execution.
Glip
Freemium
Glip is fully searchable, real-time group chat; video chat, task management, file sharing app.
TribeScale
Free
TribeScale is an All-in-One platform to coordinate your team around what really matters - communication, goals, decisions, tasks and results.
Grape
Commercial
Grape is an REST-like API framework for Ruby. It's designed to run on Rack or complement existing web application frameworks such as Rails and Sinatra by prov…
Compare Mattermost with alternatives
Compare Matrix.org and Mattermost and decide which is most suitable for you.
Compare TribeScale and Mattermost and decide which is most suitable for you.