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    Measure horsepower and torque by your own

    Make your own dyno test with your smartphone, and compare performance parts effectiveness

    Get PerfExpert on the Apple App Store
    Get PerfExpert on Google Play Store
  • Make your own dyno test at anytime

    A real dynamometer in your pocket, featuring :

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    2% accuracy

    Hundreds of users have compared PerfExpert with chassis dynamometers, showing great accuracy and consistency.

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    Compare your results to have pertinent insights about which tuning or parts provide best performances.

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    Share your results easily with friends, on any social network.

  • They tested and approved it

    You too, perform your own dyno test with your Android or iOS device

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    So far so good

    So far it's awesome. Let me get some more runs.


    Christian Vanegas

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    Best dyno app

    Very accurate dyno and

    timed run 


    Matt Blake

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    The results are spot on, very impressive for "only" an app compared to a rolling road.


    Tom Gijsbers

  • How It Works ?

    It's simple

    1. Create your car profile

    Describe your car to PerfExpert by providing information such as car weight, tire sizes or engine displacement (see complete parameters list in the FAQ).

    2. Mount your phone firmly

    No need to connect your phone or tablet to your car. With your device firmly mounted inside your car, PerfExpert can rely on your device's sensors to measure real car acceleration.

    3. Accelerate through the entire rev range

    Find a flat, straight, level road with no traffic and perform an acceleration from low rev to max engine rev, holding the same gear : that's it!

  • See it in action

    Performing tests with PerfExpert is fast and easy to achieve

    PerfExpert dyno test procedure

    1. Mount the phone in proper position
    2. Put the car to a complete stop
    3. Press START and wait the GO signal
    4. When ready, launch the car slowly in 1st gear
    5. Shift up to the selected gear
    6. Wide open throttle from low rev, up to max engine rpm
    7. Release throttle and let the car slow down
    8. PerfExpert then displays horsepower and torque
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    Don't wait to test your car

    Use your Android or iOS device to make your own dyno test

    Get PerfExpert on Apple App Store
    Get PerfExpert on Google Play Store
  • Any question ?

    Feel free to contact us!