Thank you for your inquiry. We are not a part of Zoom. You can contact Zoom directly by clicking here for more information on the similarities and differences between the two sites. One noticeable feature on the Zoom US site is the ability to add unlimited US/Canada toll-free and call-out options to their plans. It also offers a toll-free, premium toll, and call-out option for 100+ countries.
Also note that Zoom US works globally meaning you can start or join a meeting from any international location using PC, Mac, & Linux , Android & iOS , H.323/SIP devices or telephone dial-in with the exception of a few countries due to regulatory issues.
To see our complete list of the 6 best video conferencing software, click here