Host free Apple TV+ watch parties for Severance, Ted Lasso, Silo, and everything on Apple TV+. The SyncUp browser extension keeps everyone in sync within about 200ms.
Free for Chrome, Firefox, and Edge
SyncUp natively supports YouTube, Twitch, Kick, and thousands of HTML5 video sites - no extension needed. For streaming services like Apple TV+, our free browser extension enables synchronized playback. Each person needs their own Apple TV+ subscription.
Apple already has a way to watch Apple TV+ together: SharePlay. It runs over a FaceTime call, so it lines up playback nicely when everyone is using an iPhone, iPad, Mac, or an Apple TV box. The catch shows up the moment one person in the group is on a Windows laptop or a Linux machine. SharePlay has no browser version and no cross-platform option, so that person is left out (Last verified: May 2026).
Picture four friends planning a Severance rewatch. Three are on Macs and one is on a Windows PC. With SharePlay, the Windows friend cannot join the synced session at all. SyncUp runs in the browser on Windows, Mac, and Linux, so the same four people can sit in one room and keep playback aligned within about 200ms. Everyone still signs in with their own Apple TV+ subscription and streams at their own quality.
Each viewer installs the free SyncUp browser extension on Chrome, Firefox, or Edge, then joins a room. The extension reads play, pause, and seek events and relays them over a WebSocket connection, which is how a Windows viewer and a Mac viewer end up looking at the same scene. If you want to compare this approach with SharePlay and other tools side by side, the watch party app roundup lays out the tradeoffs. You can read more about SharePlay itself on Apple Support.
Get the free SyncUp extension for Chrome, Firefox, or Edge. Usually takes under a minute.
Visit SyncUp and create a free watch party room. Share the room code with your friends.
Navigate to your streaming service and start a video. Playback syncs across everyone in the room.
SyncUp makes watching Apple TV+ together straightforward and free. Here's how it works:
Play, pause, and seek actions sync within 200ms via WebSocket. Occasional drift can happen on longer sessions, but a quick resync fixes it.
Invite as many people as you want. We've tested rooms with 50+ viewers without issues.
SyncUp syncs playback timing only - video streams directly from the source at whatever quality you choose.
Install the extension once (takes about a minute), then create watch parties with a couple clicks.
Install the free SyncUp browser extension, create a watch party room, and share the room code. Everyone with the extension installed stays in sync within about 200ms while watching Apple TV+ in their browser. Each viewer needs their own Apple TV+ subscription.
Yes. SyncUp and the browser extension are free. Free rooms hold up to 5 people, and the optional Plus plan ($3.99/month) lifts the cap to 50 for everyone in the room. You'll still need your own Apple TV+ subscription for the content.
SyncUp and SharePlay solve similar problems differently. SharePlay requires Apple devices and FaceTime; SyncUp works in any modern desktop browser (Chrome, Firefox, Edge) on any operating system, so mixed-platform groups can watch together without anyone needing an Apple device.
Yes. Apple TV+ uses DRM-protected playback, so the SyncUp extension is required to sync video state. The extension is free and installs in under a minute on Chrome, Firefox, or Edge.
Apple TV+ watch parties require a desktop browser because mobile browsers don't support extensions. SyncUp works on mobile for YouTube, Twitch, and Kick without an extension.
The extension targets Apple TV+ streaming on tv.apple.com. Rentals and purchases tied to the Apple TV app on macOS or iOS aren't covered, since SyncUp can't reach playback state outside the browser.
Install the free extension and you can start a Apple TV+ watch party in a few minutes.