Threads has set records for user growth since its launch, with celebrities, politicians and other newsmakers joining the platform that is seen as the first serious threat to the Elon Musk-owned microblogging app.

While ChatGPT took two months to hit the 100 million user mark and video-sharing app TikTok took nine months, Instagram itself took two and a half years to reach that mark after its 2010 launch.

Dubbed as the 'Twitter-Killer', Threads logged 10 million sign ups within the first seven hours after its launch, with celebrities from Kim Kardashian to Gordon Ramsay joining the app.

His lawyer accuses Meta of 'unlawful misappropriation of Twitter's trade secrets and other intellectual property'.