Bitrix24 is a free groupware unlike any other solution on the market. First, Bitrix24 is social groupware with modern interface.
Second, it one of the most comprehensive groupware solutions with over 35 tools available to you absolutely free of charge. Third, unlike most groupware solutions that were designed
in late 1990s - early 2000s, Bitrix24 works with all modern mobile devices and comes with native Android and iOS apps. Finally, Bitrix24 is one of the free groupware.