Instagram: What is the genesis of Instagram? - Quora
Ottway Ducard stashed this in mobile
First off, we have to say that we never expected the overwhelming response that we've seen. We went from literally a handful of users to the #1 free photography app in a matter of hours. But as my cofounder Mike Krieger likes to say, Instagram is an app that only took 8 weeks to build and ship, but was a product of over a year of work.
Overnight successes aren't.
You have to add the stress that their first product (Burbn) was a failure, they were running out of money, and one of their funders (Andreessen Horowitz) told them they wouldn't invest in Instagram.