Sorry, Only in Japan. Because using the Japanese Industrial Standards This app is an app for measuring the size of the jewelry ring of Japan. Units of jewelry ring size of Japan is pronounced "gou". If you came to Japan, please try to use, such as in the case of considering the ring. The accuracy of the scales cannot be guaranteed.
Download the installation package of Japan Ring Size Ruler 1.1.3 that is absolutely free and have a look at users' reviews on Droid Informer. The app runs flawlessly on Android 4.1 and higher. This application is completely secure for downloading. Oishiapp designed the tool that falls into the Lifestyle category.
The developer rolled out a new version of Japan Ring Size Ruler on Jan 5, 2019 and over 10K users downloaded and set up the app. On Google Play, this application is rated 4.2 by its users. There are adverts in the tool.