FastR is the #1 vehicle acceleration performance app on iPhone. It allows you to test your vehicle's 0-60 and Quarter mile times in a hands-free and fully automated manner. With FastR, you can accurately measure your acceleration performance down to the millisecond.

One of the main features of FastR is the real-time leaderboard. It displays your rank amongst other users, allowing you to see how your vehicle's acceleration performance compares with others. This adds a competitive element to the app, giving you the opportunity to earn bragging rights.

In addition, FastR lets you save acceleration times from different car models. This allows you to track and compare the performance of multiple vehicles over time. Whether you're a car enthusiast or simply curious about your vehicle's acceleration, FastR provides an easy and accurate way to measure and compare performance.