No marketing really. At the beginning, almost all users came from the Mac App Store.
I've tried different marketing things along the way, like sponsored posts or Google Adwords. Probably spent around $500 in total on marketing during the lifetime of the app. None had a meaningful effect so I kind of stopped trying.
I mostly focus on engaging my users as much as I can and trying to make them happy, so that they will recommend Dash to others.
Not sure how it is on iOS, but I'd assume your app has to deserve to some extent to be in the top. If you're in the top because of a fluke (e.g. you got featured in some blog post), you'll fall as soon as the hype fades. No idea really, the most "high-ranked" I've been on iOS was around rank 80 Top Grossing in the Productivity category, which I lost as soon as the launch hype faded.
Every app is a special case, yes. I was just saying that the numbers in the article are not real. Redacted (the app) didn't stay in the top grossing rank enough. It just climbed and fell.
The Mac App Store is my main revenue source. I released my iOS app in November 2014. The revenue from it wasn't worth mentioning separately in last year's report.
This year, the revenue from iOS is around 10% of the Mac app.
The method listing does show headers/sections for Underscore. See http://i.imgur.com/agqawiL.png. As far as I can tell, this is the same as the side menu at http://underscorejs.org/. If anything is missing, let me know!
I'm not able to find the docs for Django 1.0 and 1.1, but all others should be doable. Right now I'm focusing on fixing things for OS X 10.10, but I've added a todo entry for this and as soon as I can I'll add them.
I'm Dash's developer. Currently there is Zeal, that has access to all of Dash's docsets - http://zealdocs.org. Native apps for iOS and Windows are also under development and recently an app for Android has been released (http://lovelydocs.io/). Note: these apps are made by other developers, I'm just providing the docsets.
