Distance-measuring instruments have evolved a great deal from the rudimentary surveyor’s wheels to contemporary laser rangefinders and theodolites. Although accurate distance measurement still remains expensive and unwieldly for professional applications, the modern smartphone has nevertheless miniaturized and simplified this complicated engineering problem. A smartphone is now all you need to quickly tackle macro measurement tasks such as estimating networking/electrical cable runs within the house or figuring out how far your daily jogging route takes you. Unfortunately, for every distance-measurement app that is barely competent, there are a dozen that are virtually useless. Luckily for you, we have waded knee deep through the mediocrity of the… Read more