I'd say organic mostly. I read stories of people making the most money they ever made on launch day, and almost none after, but I've only had that experience once, with Debt Snowball. And it still has made more over time than it did at the launch.
Interesting. How soon could you tell an app was going to take off and have a lot of organic growth? Would you give up on an app if it didn't have enough growth soon enough? Also how much was based on having the right search keywords? Sorry if this is too many questions :).
Usually pretty soon, but it definitely varied over time per app. I never gave up too quickly, probably not quickly enough in some cases (I did an Apple watch update last month for an app that hasn't made more than $10 a month in the last 2 years.)
