Skype
Freemium
Skype is an instant messaging and VOIP (Voice Over Internet Protocol) client to communicate with people in a distant place.
Redbooth
Commercial
Redbooth (Teambox) is a web-based and on-premises workplace collaboration tool and communication platform.
eXo Platform
Commercial
eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform.
Whaller
Freemium
Whaller allows teams and organizations to create their own internal social networks, meaning no adverts and no data exploitation.
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…
dapulse
Commercial
Dapulse is a smart collaboration and communication app you can use to get your team members working in sync in one place.
taskblitz
Freemium
taskblitz is set of tools to collaboratively get your work done including project management, chat, time tracking and invoicing.
Trillian
Freemium
Trillian is a proprietary multiprotocol instant messaging application.
Mattermost
Open Source
Mattermost is an open source, private cloud Slack-alternative, Workplace messaging for web, PCs and phones. MIT-licensed.
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…
Hibox
Freemium
Hibox provides task management, business chat and video calls.
Flock
Freemium
Flock is a communication app for teams. Packed with tons of productivity features, Flock drives efficiency and boosts speed of execution.
Huddle
Commercial
Huddle is a team collaboration & project management software for enterprise and government.
buckets.co
Free
buckets.co helps you optimize workflows & collaboration at all levels.
Azendoo
Freemium
Azendoo is a project management & team collaboration platform.
