What are some alternatives?
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
Slack - A messaging app for teams who see through the Earth!
Samepage - Easy to setup collaborative tool and file syncronization cloud application
MangoApps - Founded in 2007, MangoSpring transforms the way teams work together.
Quip - Quip is the modern productivity suite that simplifies your life and helps your team get work done faster.
monday.com - The most intuitive platform to manage projects and teamwork