Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
YoutubeMultiDownloader - Just like its name YouTube Multi Downloader, it is an online website for downloading the videos of downloading without using any video download and accelerator.
Sync Video - Ever wanted to watch a video on YouTube or Vimeo simultaneously with your friends, who are not exactly sitting next to you? Now you can watch videos synchronized!
KeepVid - A free web application that allows you to download videos
Rave - Rave is a free iOS and Android app where you can watch Netflix, Disney+, YouTube, Prime Video and more while chatting with friends in perfect sync. It's the ultimate virtual movie theatre!
SaveFrom.Biz - Convert YouTube video URL to MP4 file and download it to your device. SafeFrom is the best YouTube video downloader and converter.