Twitter-owned social live streaming app Periscope surpassed 10 million registered users earlier this month, and is now streaming more than 40 years (or 350,000 hours) of video every single day, according to a blog post by Periscope’s co-founders Kayvon Beykpour and Joe Bernstein.

The post also revealed that Periscope now has close to 2 million daily active users, but the two co-founders argued that this wasn’t the right metric to measure Periscope’s success. “If we were motivated to grow (daily active users), we’d be incentivized to invest in a host of conventional growth hacks, viral mechanics, and marketing to drive up downloads. This direction doesn’t necessarily lead to a better product, or lead to success for Periscopers,” they wrote.

Twitter acquired Periscope earlier this year for a reported $100 million, and launched it at the end of March to the public. The company followed up with an Android app in May. Recent data from Adobe suggests that Periscope is winning the race with fellow social live streaming startup Meerkat, with Periscope continuing to grow while Meerkat’s growth has been stalling.