Twitter's Periscope Reaches 10 Million Registered Accounts

Periscope, Twitter's live-streaming app, now has 10 million accounts active on iOS and Android. The app was launched about four months ago; it hit 1 million users in the first ten days.

Kayvon Beykpour, Periscope's founder, said in a broadcast today that the best metric for judging the success of the app is the amount of time watched each day, rather than the number of active users. Users collectively watch 40 years of content daily on mobile devices alone.

For now, Periscope is sticking to total accounts created and how much time people are spending watching streams every day, a metric the company believes better explains how it’s growing. Right now, people are watching 40 years-worth of live video every day.