Half-price traffic usage in Iran
No sign-up, nothing to download.
Make a room, send the link, press play.

Paste a link, play a file or share your screen. Everyone in the room sees the same moment.
Share a browser tab or your desktop.
Stream a video file from your computer.
Paste a video link. Everyone streams the video from the source.

Play, pause and seek reach everyone. Pause for a snack and nobody falls behind.
Every play, pause and seek reaches the whole room.
Memes and inside jokes encouraged.
Turn on your camera to see each other.
Talk in a live voice channel, with mute, deafen and push-to-talk.

Theater mode gives the video the full screen, keeps chat beside the picture and hides everything else.
No account and nothing to install. Four steps from here to watching.