Zimmer is described as 'Enjoy YouTube Music Together: zimmer is the easiest way for friends to chat in private rooms while watching YouTube videos. Gather your friends and turn any YouTube video into a virtual get-together' and is an website in the Social & Communications category. There are more than 10 alternatives to Zimmer, not only websites but also apps for a variety of platforms, including Google Chrome, Mac, Windows and Linux. The best alternative is StreamParty, which is free. Other great sites and apps similar to Zimmer are Syncplay (Free, Open Source), Watch2Gether (Freemium), Teleparty (Free) and Rave (Free).
Enjoy a movie night with your friends. Binge Together lets you create and join watchparties where you and friends can enjoy videos together from services including Netflix, Amazon Video, YouTube and Vimeo.
Watch videos together at the same time! SyncWatch allows watch videos with friends at the same time! You can watch movies, anime, lectures together. Now it is no need to count 1..2..3. Just join to the room and your videos will be synchronized.