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Watch Together Online, Whatever You're Watching

SyncUp keeps playback in sync within milliseconds for everyone in the room, anywhere in the world. YouTube, Twitch and Kick work straight in the browser. Netflix, Disney+ and other streaming services sync through the free browser extension. Pick your platform to see how it works.

No extension needed

These work instantly in any browser, on desktop or mobile, with no signup.

Streaming services (free extension)

DRM-protected services sync with the SyncUp extension. Everyone needs their own subscription to the service.

Every platform compared

What each platform needs before you can watch it in sync. Last verified July 2026.

SyncUp platform support: whether each platform needs the browser extension, whether every viewer needs their own subscription, and whether it works in a mobile browser.
PlatformExtension neededOwn subscriptionMobile browser
YouTubeNoNot neededYes
TwitchNoNot neededYes
KickNoNot neededYes
NetflixYes, free extensionYes, each viewerDesktop only
Disney+Yes, free extensionYes, each viewerDesktop only
Max (HBO Max)Yes, free extensionYes, each viewerDesktop only
HuluYes, free extensionYes, each viewerDesktop only
Prime VideoYes, free extensionYes, each viewerDesktop only
CrunchyrollYes, free extensionYes, each viewerDesktop only
Paramount+Yes, free extensionYes, each viewerDesktop only
Apple TV+Yes, free extensionYes, each viewerDesktop only
PeacockYes, free extensionYes, each viewerDesktop only

Common questions

Does everyone need their own subscription, or can the host share access?
For streaming services like Netflix, Disney+, Max, Hulu, Prime Video, Crunchyroll, Paramount+, Apple TV+ and Peacock, every viewer needs their own active subscription. SyncUp synchronises the timestamp each person's own player is at; it does not restream the host's video, so there is nothing to share. That is also true of Teleparty and every other extension-based watch party tool. YouTube, Twitch and Kick are the exception: they are free to watch, so nobody needs an account at all.
Which platforms work without installing anything?
YouTube, Twitch, Kick and standard HTML5 video sites all work directly in the browser with no extension and no signup, on desktop and on mobile. The nine DRM-protected streaming services need the free SyncUp browser extension for Chrome, Firefox or Edge.
Can I watch together on my phone?
Yes for YouTube, Twitch, Kick and HTML5 video, which run in any mobile browser. Streaming services are desktop-only for now, because mobile browsers cannot run the extension that syncs them.
How many people can watch together at once?
Free rooms hold up to 5 people. If anyone in the room has SyncUp Plus, the cap rises to 50 for everyone in that room, so one Plus member can host a larger group without the rest subscribing.
What is the best app to watch movies together online?
It depends on where the film lives. If it is on YouTube or a normal video site, SyncUp needs no extension or signup and works on mobile. If it is on Netflix, Disney+ or Max, you need an extension-based tool and everyone needs their own subscription, which is where SyncUp's free extension or Teleparty both apply. If you want to watch a file from your own computer, SyncUp streams it peer-to-peer without uploading it anywhere.

Start a watch party

No account required. Create a room, share the link, and watch together in seconds.

Create a Room