Height Ruler (Barometer)

Response from developer

Hi there, the accuracy of the measurement is written on the final measurement itself, and the app appears to be just as accurate as it usually is. It can is usually be within about +/- 6' for human heights when standing as still as possible, and +/- 3' for immobile objects like a table, reason being it is measuring height using on the surrounding air pressure, and slight movements will disrupt the air pressure. The app can thus measure disruptions in air pressure due to movement and can provide you with an 'accuracy'. You can always use that as a guide as to how accurate your measurement will be - this is always lower the more stable your device gets. The best possible scenario is a measurement within 3' for a completely immobile object in a room with minimal air flow (e.g. all fans off), like the height of the table. Try that, and you should get very accurate results. For human heights, because your phone may be moving around slightly as it's not easy to keep it still on your head, the accuracy will be lower. Hope this helps!