Threads Per Inch/mm Identifier is a free Android app developed by Greg A Miller. It falls under the Utilities & Tools category and is designed to help you identify the size of bolts and screws with ease.

The app is simple to use, and it displays an actual size diagram of both US SAE thread pitches and metric (mm) thread pitches. All you have to do is match up the threads on the screw with the diagram on the screen, and the app will identify the size of the screw or bolt. This feature is particularly useful for those who work with screws and bolts frequently and need to identify them quickly and accurately.

Overall, Threads Per Inch/mm Identifier is a handy app that can save you time and effort when identifying screws and bolts. The app is easy to use and provides accurate information, making it a valuable addition to your toolbox.