Not ready for worldwide use
I just read about this app in Conde Nast Traveler and checked it out. Having lived in Sweden for a while, I could tell the questions are very specific to the Nordic countries. Their calculations for things like electricity definitely don’t take into account someone like me living in California (where many cities are phasing out gas in favor of electricity, never mind we don’t use as much heat in many parts of the state). Nice idea, but not ready for worldwide use.