TikTok has reached a billion users worldwide just four years after its global launch, much quicker than social media rivals, though its ban in India is a drag on growth.

TikTok’s popularity with under-25s has contributed to a hollowing-out of Meta’s active userbase. During the pandemic, TikTok also expanded its reach among older demographics, cementing its position within the mainstream and posing a further threat to Meta. 

TikTok could earn twice as much revenue as Snap in 2022, making it the first app to break out of the mid-league in years, with a huge runway for growth backed up by ByteDance’s remarkable success in China.