Cam Measure is a simple and easy to use measuring tool for quick measure of object's length. This flexible ruler helps you conveniently and accurately measures the length of everything with your phone anywhere, anytime. Cam Measure is special designed to measures the dimension of objects that are larger and longer than your device's screen size. Using Cam Measure is very intuitive and easy. You just need to click on the screen with your finger and move the device with another hand repeatedly from the start point to the end point of measured object, then take the reading. With your camera, now get it as a long tape ruler. Cam measure is a smart measure helpful for you. *** TIP : - Input exactly your phone height - Capture bottom and top of object and get height and distance - Building height use when you stand higher than bottom of object to measuring With Cam Measure, now you always bring a tape measure with you as in your smart phone.