PerfExpert is a brand that offers the PerfExpert Onboard Dyno app, which allows you to accurately measure horsepower and torque using your own smartphone. With this app, you can easily create a car profile, securely mount your phone in your car, and accelerate from low rev to max engine rpm, all while holding the same gear. It's that simple! PerfExpert prides itself on providing a reliable and convenient way for car enthusiasts to test and compare their tuning effectiveness.

The app features a real dynamometer in your pocket with 2% accuracy. Hundreds of users have compared PerfExpert with chassis dynamometers, showing great accuracy and consistency. You can also compare your results to gain valuable insights into which tuning or parts provide the best performances.

Easily share your results with friends on any social network. Join the many satisfied users who have tested and approved the PerfExpert app to perform their own dyno tests on their Android or iOS devices. Get started now and experience the accuracy and convenience of PerfExpert!