Which acquired product feature is widely credited with transforming TikTok from a lip-syncing app into the cultural phenomenon it is today?

In the ever-evolving world of social media platforms, sometimes a single product feature can dramatically alter a company's trajectory. TikTok has become one of the most influential platforms in pop culture today, but its journey to global dominance wasn't always certain. This trivia question explores a critical turning point in TikTok's product history that helped catapult it to worldwide fame.

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Musical.ly's short-form video format
Instagram's story feature clone
Snapchat's augmented reality filters
YouTube's recommendation algorithm