Periscope is described as 'Explore the world through someone else's eyes. Going live will instantly notify your followers who can join, comment and send you hearts in real time' and is an app in the Video & Movies category. There are more than 25 alternatives to Periscope for a variety of platforms, including the Web, iPhone, Android, iPad and Windows. The best alternative is Twitch, which is free. Other great apps like Periscope are IPFSTube (Free, Open Source), Livestream (Paid), Cameleon.live (Freemium) and Sendvid (Freemium).