KoalaSync vs Teleparty: which watch party tool should you use?
KoalaSync and Teleparty both help with the same annoying problem: watching something together without doing the whole "3, 2, 1, play" routine. They just take a different approach.
Teleparty makes the most sense if you want a built-in chat or if you want to watch on mobile. KoalaSync is more for desktop browser watch parties where you are already talking on Discord, Teamspeak or another voice call and just want playback to stay in sync.
The main reason I built KoalaSync was flexibility. It is meant to work with almost any website that uses a normal browser video player, not just a fixed list of platforms. That includes self-hosted setups like Emby, Jellyfin and Plex, local/private domains, and a lot of normal video pages in the browser.
When Teleparty may still make sense
Teleparty can still be the better choice if you want the chat to be part of the watch party tool itself. KoalaSync does not currently have a built-in chat. It assumes you are already talking somewhere else, like Discord, Teamspeak, WhatsApp, Signal or a normal call.
Mobile is the other big reason. Teleparty has an app, while KoalaSync currently only works on desktop browsers. If you want to sync Netflix on a phone or tablet, KoalaSync is not the right tool for that right now.
So if chat and mobile support are the things you care about most, Teleparty may simply fit your setup better.
When KoalaSync may fit better
KoalaSync fits better if you want a flexible desktop browser sync tool instead of something tied to a short platform list.
It works with almost any website that uses a normal browser video player. That is especially useful for Emby, Jellyfin, Plex, private media servers, local domains, or smaller video sites that classic watch party tools usually ignore.
It is also free, open source, does not require accounts, and can be self-hosted if you want to run your own relay. I built it because I wanted something privacy-friendly that worked with my own Emby setup, not another closed platform just for a few big streaming sites.
The main difference
Teleparty is more of a watch party product with chat and mobile support. KoalaSync is more of a flexible sync layer for browser video.
That sounds like a small difference, but it changes the use case a lot. If you need a full watch party app with chat inside it, Teleparty makes sense. If you already have voice chat and just want the video controls to stay synced across browsers, KoalaSync is the simpler fit.
Honest limitations
KoalaSync is not magic and it is not trying to hide its limits. It currently works only on desktop browsers. It has no built-in chat and no mobile app.
Compatibility also depends on the browser and the video player. KoalaSync should work with almost any normal browser video player, but websites can change their players, DRM behavior or browser restrictions at any time.
KoalaSync is not affiliated with Netflix, Disney+, Prime Video, YouTube, Teleparty, Emby, Jellyfin, Plex or any other brand mentioned here. The names are only used to explain typical use cases.
Summary
If you want built-in chat or mobile support, Teleparty may be the better fit. If you want free, open-source desktop browser sync that works with almost any normal video player, including self-hosted media servers like Emby, Jellyfin and Plex, KoalaSync is probably the better match.