Speed Lite is a free Android application that turns your phone or tablet into a speedometer and accelerometer. Its main purpose is to show you how fast you are going and how hard you are accelerating.

The app is designed to be simple and intuitive. It assigns background colors to speed ranges, so you can quickly see how fast you are going without taking your eyes off the road. The acceleration is also color-coded with a red background, making it easy to monitor how hard you are accelerating.

In addition to the speedometer and accelerometer, Speed Lite has some other useful features. You can tap the small speed to toggle between mph and km/h, which is handy if you are traveling between countries. You can also tap the accelerator to make it larger, which is useful if you have trouble seeing small text.

One thing to note is that Speed Lite is ad-supported freeware. This means that you will see ads while using the app, but you won't have to pay anything to download or use it.