Ruler app is a great handy mobile measurement app. You can measure everything with a fantastic on-screen ruler. Firstly, Choose between inches and centimeters. Then, Tap the screen to start using the best multi-touch measuring system. And find the size of all curious objects around you. Fast and responsive interface with a beautiful modern design that looks great both on the phone and tablet. Imperial (inch) and Metric (centimeter/millimeter) units are available. Smart history for your latest measurements. Copy current length to clipboard and paste it in another app. Multi-touch caliper tool functionality. It is an easy and handy tape measure, always in your pocket. It Calibrates the app if units are inaccurate. You can Grab a real ruler and follow the instructions in the Settings menu. Using this app is very simple so everyone can use it. Just touch the screen and move the left and right handles with your fingers. Moreover, you get Smart history for your latest measurements. You can Copy the current length to the clipboard and paste it into another app. This app is useful for civil engineers, Architects, and Interior designers. Download the free APK file of this mobile app here.