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Why aren't developers choosing to build PC apps instead? Stardock said that their worst-performing PC game earned more revenue than most iOS or Android apps for which they could obtain revenue numbers. On PCs, it is still possible for developers to sell from their own website, without paying a 30% fee to a platform app store. PCs may be a numerically smaller (hundreds of millions vs. billions of devices) market, but…
I know some indie game developers. Plenty don't develop for any particular platform. You write your code in Unity3D, and then build for all the platforms it can (Android, IOS, etc) then you build your app for Steam where you make it run on all platforms (ie Windows, Mac and Linux) which is easy because it is almost just a button in Unity. Then you hope that enough people buy your game to earn the development cost bac…
http://en.m.wikipedia.org/wiki/Steam_(software) mentioned Steam Greenlight for estimating demand for new games, but it is apparently being phased out.
Is it limiting when a platform (Apple, Valve, Amazon, etc) owns the customer relationship? Seems like it would be difficult to apply conventional marketing techniques to learn about customers, if the platform provider owns the user's contact info.