5 Great Ways To Build Your Brand Using Periscope   If you have not heard of Periscope, you are missing out. Periscope is a live video streaming app released by Twitter in March of 2015. It allows its users to stream live video from all over the world and the video will remain available for 24 hours before it’s erased. You can follow your favorite users and be notified whenever they come online to share with you!