YouTube’s experimental app Uptime, which lets you watch videos with friends while reacting and commenting, has now opened up to all users. The app was first launched in March of this year, from Google’s internal incubator, Area 120, as a means of testing a more interactive and social way to watch YouTube.

Instead of viewing YouTube videos on your own, then sharing those you like with friends via links in chats or to social networks, Uptime lets you watch videos with friends directly in its app. Friends can either co-watch with you in real-time, or they can join later to see others’ reactions to the videos played back as they watch, giving Uptime a lively and interactive feel even when you’re watching alone.

Techcrunch

I really like this idea. I have wanted something like this for a while I think this could be a real competitor for Snapchat and Facebook Messanger.