More than 10 million people have signed up to Twitter’s livestreaming app, Periscope, since it launched at the end of March, with the aim of letting everyone send livestreamed videos from their phone to the world.

And now users are sending 40 years of video per day, according to Twitter, which owns Periscope.

Periscope said the amount of time watched “is the metric we care about most”, because it tells it how successful it is for users and indicates how many people are using the app. It said despite the huge numbers of active users, that metric wasn’t helpful since it didn’t want to grow in a way that didn’t lead to the success of the product or its users.

Periscope launched at the beginning of a rush for livestreaming apps, shortly after similar app Meerkat. While the latter had much of the initial publicity and popularity, Twitter’s has taken over.

Facebook is also looking to get into livestreaming, claim reports. Verified pages – the owners of which get access to a special app called Mentions – will soon be able to send live videos to their followers, according to Techcrunch. – The Independent