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Grok says:
Zoom has the largest user base among video chat tools, with over 300 million daily active users as of 2024, significantly outpacing Microsoft Teams, which reports around 320 million monthly active users.
Other platforms like Google Meet, Cisco Webex, and Slack have smaller user bases, with Slack at around 32.3 million daily active users, and no recent figures for Google Meet or Webex surpassing Zoom or Teams.
Zoom’s dominance stems from its ease of use, accessibility (no account needed for joining), and widespread adoption during the 2020 pandemic, growing from 10 million to over 300 million daily meeting participants in a few months. Teams, while popular in organizations using Microsoft 365, has a more complex interface and is often used for internal collaboration, which may limit its reach compared to Zoom’s broader appeal for both personal and professional use