This is a ruler app. It can measure length with the highest accuracy of the app, so it can be used in a variety of situations. Please use the free ruler app for your daily office work and crafts. Furthermore, the free ruler app is convenient when you suddenly need to measure a length on the go. Ruler app use case ・Office work ・Crafts ・Sewing ・shopping Ruler app permissions No special permissions are required to use this app. Please feel free to use the ruler app. Ruler app security Each update of this app is released after confirming that there are no safety issues with all six types of security software from different vendors. Please feel free to use the ruler app. Please use the free ruler app in various situations!