What's the best iOS app for displaying your current speed and heading information while driving, and projecting it onto your windshield as a heads-up display?

Speedometer + HUD: Cruza is a useful iOS application that displays your current speed and heading using your iPhone's GPS. A key feature is its ability to project this information onto your car's windshield, functioning as a heads-up display. This allows you to monitor your speed without taking your eyes off the road, enhancing driving safety. To use the HUD feature, simply place your phone on the dashboard with the screen facing the windshield. The app inverts the display so that the reflection shows the correct orientation. You can customize the display to show various data points, such as speed in mph or km/h, current heading, and even altitude. This makes Speedometer + HUD: Cruza a practical tool for drivers seeking a convenient and safe way to monitor their speed and direction. The app's simple interface makes it easy to use, even while driving.