It was hard to keep up with Instagram's early growth.
Briefly

Instagram's early growth phase was marked by an exponential increase in users, with 25,000 registrations on the very first day. The app's co-founder, Kevin Systrom, described this surge as 'unstoppable', focusing more on managing the overwhelming demand rather than tracking precise user counts. This period was characterized by rapid adaptation to user needs and scaling challenges, which shaped Instagram's eventual path to success.
At launch, Systrom says the app's growth was "exponential, unstoppable," with 25,000 users registering in the first day. It was growing so quickly in the early days that, in his eyes, it didn't even matter exactly how many active users were on the platform; he just had to keep up with the demand, he testifies.
Systrom highlights that the initial user surge posed formidable challenges, emphasizing that focusing on scale rather than precise user metrics was essential during Instagram's developmental phase.
Read at The Verge
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