Yes, they allowed companies and public institutions to sign up and use the product for free with quick on boarding. They basically set up a "use now pay later" approach where they allowed lots of leeway to let you figure out need and payments down the road.
The competition were charging by the user (you had to commit to some user license number) and you had to go through the regular onboarding process. Zoom was like you let us know what you need later. Let’s get you up and running and we’ll work out details later.
And you could invite anyone, i.e. external 'users'/customers, whoever. Webex allowed that, but not e.g. Teams, which many would already have been paying for via Office365 (ironic name to have and lose on this one).
The competition were charging by the user (you had to commit to some user license number) and you had to go through the regular onboarding process. Zoom was like you let us know what you need later. Let’s get you up and running and we’ll work out details later.