Bitrix24 offers a united work space which handles the many aspects of daily operations and tasks of a company including CRM, files sharing, time management, calendars, and more.
Essentially, Bitrix24 provides companies with a hub to communicate, collaborate, build knowledge, and generate new ideas in a secure and accessible cloud-based environment.
Bitrix24 has both free and commercial plans (freemium model). The free plan is a fully-fledged social intranet with a limit of 12 users. The paid plans allow unlimited users and contain additional functionality.