AcceleMon

An app that can more-than-pay-for itself after one tank of gas and improve your grades in physics, AcceleMon is a tool to display acceleration with a distraction-free interface, and clean design. With uses ranging from serious hypermiling to play at the amusement park or ski hill, it monitors the accelerometers to show the current g-force on the device numerically and as a full-screen color panel, ranging from green to a user-defined Redline.

Many devices and potions are sold to improve your car’s efficiency, but the only proven method is to improve the way you drive. By monitoring your car’s movement, you can fine-tune your driving style to encourage smooth acceleration, braking, and gear-changes. Depending on your current driving style, this can significantly improve your mileage as well as provide a smoother ride for you and your passengers. The simple color-keyed display is appropriate for dashboard use without creating a distraction, and provides immediate, continuous feedback.

More than just for driving, take your iOS device for a ride at the amusement park, up the elevator, or down the ski run to record your min/max acceleration while you play. Having an accelerometer in your pocket brings the convenience of an everyday device to your outdoor fun or to your developing theories in physics.

Users have the opportunity to adjust several behaviors of the app, including discrete or big digits, how gravity measurements are incorporated in 0g-based net reporting (or not adjusted-for in 1g-based raw readings), history bar time, and the responsiveness of the display. iPhone 4 users: buy now and take advantage of iPhone 4's improved motion-sensing hardware.