On Twitter today, Systrom gave a shout-out to the app's users, saying, "Humbled by the excitement Instagram has created. Thanks to each and every one of you in the 100k out there."
Casual photography apps in general are quite popular, but Instagram adds a twist to the iPhone photography experience, which has already been tweaked to near-perfection by many app makers over the past few years.
In an initial write-up, we called Instagram ego-driven and addictive. Ordinarily, those terms are negative, but when you're talking about social apps, a little catering to natural self-interest can go a long way toward getting your work noticed and adopted.
Clearly, Instagram has nailed this aspect; its social and popularity mechanisms make the app almost impossible to forget.
Earlier this week, Systrom spoke about the app's rapid rise through the App Store charts, telling us, “I think we’re reigniting passion for casual photography... [Instagram] has taken on a life of its own -- it’s definitely no longer our product anymore. It belongs to the community.”
We can't wait for Instagram to launch on more platforms, and we look forward to hearing more success stories from this young company.