Google Meet is a video conferencing service powered by Google. Initially, it was only available to enterprise users. However, individuals now use it, and it's completely free. Google Meet is available for use on the web (through browsers) as well as on mobile devices (Android and iOS). Note that Google Meet is a different service on its own, but it's accessible from the Gmail mail application. So if you have the Gmail app installed on your phone, you can easily use Google Meet without downloading the original app.