We do this by offering a highly curated App Store where every app is reviewed by experts and an editorial team helps users discover new apps every day. Given that you have accurately aligned markers, you will receive a measurement that is as precise as when using a traditional ruler or tape measure.The guiding principle of the App Store is simple-we want to provide a safe experience for users to get apps and a great opportunity for all developers to be successful. On-screen ruler can be calibrated using different Base Items, including Debit/credit card or coin. If you see that ruler’s scale is visually stretched/ shrunken, you can reset calibration manually. The size of the object will be show at the bottom of the screen automatically. You can measure size of a small object by placing it on the device's screen and adjusting line limiters against the object. The length of the object is shown in the top left corner of the screen. This is necessary to avoid image distortions caused by the camera perspective.Īlign the Blue arrows against the Base item and Green arrows against the object you want to measure. Secondly, ensure that the Base Item and the object you wish to measure are in the same plane and the camera is (or was) parallel to them. It is advised to use the Base Item which is closest in size to the object you wish to measure. There is a predefined list of Base Items, including Debit/credit card and Quarter. With its simple user-friendly design Photo Ruler allows you to measure things just as conveniently and precisely as with a traditional ruler or tape measure.įirstly, please ensure that the object you wish to measure and the object of known length (Base Item) are in the same picture. Photo Ruler is designed to accurately determine the size of any object by either taking a picture of it or measuring it on the screen.
THIS IS THE AD-FREE VERSION OF PRIME RULER.
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