Periscope, the live-streaming video app purchased by Twitter, is now available to let you broadcast your life to the world.

Twitter launches Periscope, an app for broadcasting live video from your phone

Periscope lets you both broadcast and watch real-time video from your iPhone. Your followers can watch and comment, and by tapping on the video as they watch, they can send you hearts to let you know that they like your broadcast.Once you've finished streaming, you can make your video available for your followers to replay for the next 24 hours, and you can delete replays before then if you want.

Speaking of followers, Periscope uses your Twitter account to sign you in, and helps you find people to follow. You can announce your broadcasts through Twitter by tapping the bird icon before you start. If you don't want to share your broadcasts with everyone, tapping the lock icon before you start will allow you to select specific people to invite to your stream

Periscope is available to download from the App Store right now.