Evolutionsstien is an iOS app for a very interesting event that took place in Denmark. The app visualises an actual route from “Orion Planetarium” to “Jels og Gram Lergrav” in Denmark. This route represents the major milestones in the Big Bang. A GPS tracker follows you as you actually go through the route, and each milestone is an actual location on the route, where you should scan a QR code to proof you’ve been through it.
It would have been an easy app too make, but we had to keep focus on battery usage, so in order to minimize the GPS draining it, we had to make fine adjustmenets taking into account app usage, proximity to milestones, etc.