UPDATE May 12th, 2021: Teooh is now called Roomkey; here is an updated review.
I swear, they must be running out of names for new metaverse platforms! (I kept typing in “Teeoh” instead of “Teooh” when searching for this one, or while writing up this blogpost.)
Teooh (currently in beta) describes itself as follows in their FAQ:
On Teooh you can create virtual events and monetize them by selling tickets. Your guests can attend as an avatar and hear speakers, socialise and network with others. All this through their laptop and mobile phone. In short, if the Sims did paid events Teooh would be it.
Teooh appears to offer several different kinds of virtual spaces for your event:

Here’a a one-minute promotional video to give you a feel:
Here’s a longer, twelve-minute video showing you a bit more of the platform:
There’s precious little technical information about Teooh on their website, and no pricing info available. All the individual customer use cases in the “For Customers” drop-down menu point to essentially the same text and images, repeated over and over for each case. Someone really needs to put some more work to this new platform’s website.
From what I can tell, this is primarily a service for desktop and mobile devices. TechCrunch reports:
Teooh won’t be available in VR, instead focusing on mobile and desktop platforms, hoping to pitch an alternative to teleconferencing software like Zoom that is more bespoke for meetups where participants can single out and chat with individual users in a virtual environment.
So, I would classify Teeoh (damn, I mean Teooh!) as a virtual world with mobile support. And frankly, I think that a nonsense word like Teooh is a terrible, terrible name for a product. (In my opinion, it ranks right up there with Twinity and Beloola for stupid platform names.) The company behing Teeoh needs to reach out to a professional branding consultant and change it.
If you want more information on Teooh, you can visit their website, or follow them on social media: Instagram, LinkedIn, and YouTube (and the link to their Twitter account from their website is broken, another sign that somebody is not paying attention to details).
It would appear that Teooh is now taking applications from parties who are interested in using the beta platform for their events; the application form is here (just click on the button “Apply for Batch #2”).
Thanks to Neobela for the heads-up!