Which mobile app was the first to hit 1 billion active users?
SMRTR summary
Facebook became the first mobile app to reach 1 billion monthly active users in 2015, taking 8.7 years. TikTok achieved the feat in just 5 years by 2021, setting a new speed record. Other apps like Instagram, YouTube, and WhatsApp have also crossed the billion-user milestone, reflecting the rapid growth of mobile-first, habit-forming platforms in daily life.
SMRTR provides this summary for quick context. The original article belongs to TechSpot.
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