Facebook has a unique new video-sharing app called Riff

Facebook has made it abundantly clear that it sees video content as the key to its future, and its latest app further highlights that fact. Known as Riff, the new app for Android and iOS allows you to append your own video to videos that you find. Your friends will see anytime that you do this and will be able to tag on their own videos, essentially mooching off of everyone else’s popular videos to boost your own. 

From Instagram and Hyperlapse to, more recently, an embeddable video player, Facebook has slowly woven video sharing into many of its products and services. But Facebook’s new app called Riff, released for iOS and Android on Wednesday, tackles video with a distinct twist. Normally, when someone shares a piece of content on Facebook, someone else might see it, share it and add a short comment of their own. Riff goes one step further and lets other people tack on their own video to the original. After users log into the app with their Facebook credentials, creating a video is a four-step deal. You’ll be prompted to enter a topic with a hashtag — #AprilFools, #SundayFunday, that sort of thing — or pick one from a list of suggestions. Then, you record a clip up to 20 seconds long. If you review it and are happy with it, you can share it to your Facebook page.