Kast is described as 'Social sharing platform where users can stream content from their computer to the people in their channel (called parties). Kast parties allow up to 20 people to share their screens and up to an additional 100 people to view in the party' and is a watch videos together tool in the social & communications category. There are more than 25 alternatives to Kast for a variety of platforms, including Web-based, Mac, Windows, Linux and Google Chrome apps. The best Kast alternative is Metastream, which is both free and Open Source. Other great apps like Kast are Hyperbeam, Syncplay, Kosmi and OpenTogetherTube.
Metastream allows you to watch internet videos with friends. It synchronizes media on websites so you can watch together.
Enjoy movie night online with your long-distance partner, start a watch party with good buddies, or hang out and binge anime with your best friend. Hyperbeam helps you stay close, even when you’re apart.
In reality, Hyperbeam is the main platform and Kast is the alternative. Much easier and better for watching together with friends. Beautiful UI, everything from text to voice chat and no paywalls.
Syncplay program allows you and your friend/partner/family member to watch same video file simultaniously on different PCs and different location by syncing playback of MPC-HC, mpv, mplayer2 and VLC players.
Kosmi is a free real time application and communication platform that offers voice, text and video calls along with games and applications such as SNES Party, NES Party, OpenArena, Poker, Virtual Cardtables, Synced YouTube and Cowatch Video.
OpenTogetherTube lets you watch videos with your friends as easily as possible. It's completely open source, and able to be easily self-hosted via provided docker images.
Rave is a free iOS and Android application where you can watch Netflix, Disney+, YouTube, Prime Video and more with friends while chatting in perfect sync. Rave is also available on Chromebooks, Android TV, and is coming soon to Mac and Windows.
Watch2Gether is a service that allows you to watch videos from Youtube, Netflix, Vimeo and other platforms in-sync together with your friends.
Flickcall is a privacy-focused browser extension to watch movies & TV shows together. Your personal chats & video stream are delivered directly to peers. Supports Netflix, Youtube, Primevideo, Hotstar, & Zee5. It is like Netflix party with video-call.
CyTube is a web application providing media synchronization, chat, and more for an arbitrary number of channels. The serverside is written in JavaScript and runs on Node.JS. It makes use of a MySQL database to store user registrations, cached media metadata, and data about each...
Netflix Party is a Chrome extension for watching Netflix remotely with friends, e.g., for movie nights with that long-distance special someone. It synchronizes video playback and adds group chat.
An online video streaming service that allows friends to host watch parties using virtual browsers. It allows users to take turns controlling the virtual browser to easily browse and surf the web.
Supports a variety of video URLs: Youtube, Facebook, Vimeo, mp4, m3u8, webm. Also supports Netflix URLs on desktop browsers
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Kast doesn't really do anything ground breaking that discord streaming won't give me. However Hyperbeam filled the problem of wanting to watch movies with my friends and being able to switch control so others could show off what they wanted. The people running Hyperbeam care about their customers as well!