Do you know what the true cost is of your app? Not the baked costs - labour, assets, distribution, marketing - those are easy and visible. The costs we are talking about are the subtle ones that have the biggest impact. Battery consumption, data consumption, processor consumption. They are killers when it comes to the cost of experience and need to be part of your equation when looking to build a successful app. Here's why you should be considering these as you build and refine your app.