Zoom offers video and audio conferencing, chat and webinar features across mobile devices, desktops, phones and room systems. It offers a free basic tier that allows you to host up to 100 participants and unlimited one-to-one meetings. It does place a 40-minute limit on group meetings, however. Zoom also has small and medium business versions, as well as an enterprise version, which cost $20 a month per host. If your organization does not use any videoconferencing service and you’re looking for a professional option while you’re working from home, at least in the short term, Zoom could be a good one for you.