Periscope is a live video streaming app available on both iOS and Android.
Developed by Kayvon Beykpour and Joe Bernstein, the idea behind Periscope stemmed from when Beykour wanted to see what was happening in Istanbul when protests broke out in Taksim Square. At the time, he could only read about what was happening via news and networks such as Twitter.
In 2015 Twitter acquired Periscope in response to the success of rival app Meerkat. Just four months after launch the company claimed to have over 10 million accounts.