It is still early days, but Threads is here to stay, and Elon Musk should be worried. On Monday, Meta CEO Mark Zuckerberg announced that the text-based app had reached 100 million signups in just five days since its launch last Wednesday.

Zuckerberg shared the news on Threads, noting that the signups were “mostly organic” and that the company “haven’t even turned on many promotions yet.” It is an impressive number considering the app has not yet been launched in the EU due to regulatory reasons. In the first two hours of its launch, Threads got 2 million signups. The number increased to 5 million in four hours and 10 million in seven hours. The next day, Zuckerberg announced the app had gotten 30 million and 70 million users later.

Instagram head Adam Moserri also posted about the Milestone.

“100 million people signed up for Threads in five days. I’m not sure I can wrap my mind around that fact. It’s insane; I can’t make sense of it,” he said.

“The team has been busting their ass, but we know this is a race to the starting line. They say “make it work, make it great, make it grow.” Well, we certainly did things out of order, but I promise we will make this thing great.”

Elon Musk has a reason to be concerned. According to CNBC, Twitter’s traffic has significantly dropped since the launch of Thread. Web traffic to Twitter decreased by 5% for the first two days of Threads availability compared to the previous week. Comparing the same days to last year, Twitter’s web traffic saw an 11% decrease. Threads’ success can be attributed to Instagram users’ ease of signup. Users will retain the same username from Instagram and their verification status.

OpenAI’s ChatGPT was the fastest to reach 100 million users, achieving the feat in two months. But Threads is now the new king making the same number within the first five days of its launch.

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