A very fun and remarkably accurate app

This app works excellently, although perhaps the instructions could be clearer based on the handful of disgruntled 1-star ratings. The premise is simple: it uses the Angle-Side-Angle theorem from geometry to determine the distance.

You first have to determine the height at which you hold your phone to use the app properly. (The challenging part is to hold the phone at the same height each time.) This is the "side" in the ASA theorem. The app presumes that the first angle (between you and the ground) is 90 degrees. It then uses the phones ability to sense the angle its held at to determine the third angle. From this it can calculate the distance you are from the object in question.

As a neat feature as well, it can calculate height. The algorithm is self explanatory once you understand how it calculates distance. The zoom feature is also great for further precision.

Its difficult to understand what the disgruntled reviewers were doing wrong, but it has worked excellently for me, to an accuracy of about 2-3%. It makes intuitive sense that it would have poor accuracy for extremely small angles or extremely large ones (e.g., close to 0 or 90 degrees, respectively).

An app that garners both extremely negative and positive reviews probably is a scam (with the positive reviews fraudulent ones) or is a good app that may be difficult to use correctly. This app is the latter. I am just an iphone user who stumbled across this app. No financial relationship with the developer to disclose.

Akatalutos about Point & Measure