Experience speed like never before with our ultra-lightweight app, designed to be ad-free and under 3 megabytes. Enjoy a fast, easy download and installation that gets you up and running in seconds. Perfect for users who value simplicity and performance. The need for this app came from when I traveled to Japan, and wanted to see the speed of various trains and vehicles. But on my limited connected, downloading the popular apps for speedometer are insanely big, and filled with unnecessary features.