A modern browser
Chrome, Edge, Brave, Arc, Opera, Safari 17 or later, or Firefox. No download, no plugin.
What you need
Less than you'd think. Here's the honest list.
A camera and mic for a real two-way call
At least one side needs them. Both sides need a capable machine and network for high resolution — resolution follows your hardware, and we don't warrant a specific number.
A big screen, if you want one
Start the call on your phone or PC, then mirror or cast to the TV. There is no Smart TV store app today.
A network that allows peer-to-peer
Calls are direct peer-to-peer with no relay servers. Some firewalls and symmetric NATs never connect — if that happens, try a different network.
The browser, for now
Native apps for iOS, Mac, Windows, and Android are in development, with iOS in App Review. They are not public downloads yet — the browser is the path today.
Room size limits
Free rooms are up to 4 people plus 1 extra camera; Pro up to 12 people plus 4 cameras; Cinema up to 32 people plus unlimited cameras. Cameras are not seats. These are seat caps — not a promise that a big room will look like a 4K Zoom call. Resolution and smoothness still follow each peer's hardware and network.
A relay only if you bring one
Free calls are direct peer-to-peer with no relay, so we can't promise enterprise NAT traversal. Cinema includes bring-your-own relay — a relay you run yourself — for the calls that never connect directly.
4K Chat is not for emergency or life-safety use — see our Terms of Service.