*In response to COVID-19 through July 19: free access to their advanced Hangouts Meet video-conferencing capabilities to all G Suite and G Suite for Education customers globally including larger meetings, for up to 250 participants per call, live streaming for up to 100,000 viewers within a domain, and the ability to record meetings and save them to Google Drive.
Office 365/Teams $0-12.50/per user*, Services Provided: Video Conferencing, Instant Messaging, Information Storage/Sharing, Project Management, Security Encryption
*In response to COVID-19: Beginning March 10, Microsoft is rolling out updates to the free version of Teams that will lift restrictions on user limits.
ZOOM $0-19.99*, Services Provided: Video Conferencing, Web Conferencing/Webinar, Security/Encryption
*In response to COVID-19: free for educators to move toward virtual learning