PerfExpert - Car Dyno HP Test

Name: PerfExpert - Car Dyno HP Test
Price: 9.99 USD
Rating: 2.4642856 (862 reviews)
Author: PerfExpert

By: PerfExpert App

Measure your car's real HP & torque with 2% dyno accuracy. No OBD needed!

Overview

Google Play Store

Downloads

26,827

Data as of 2026-09-24

Rating:

2.46 +2

(862)

Version:

2.4.5

Last updated: 2026-08-28

Ranking

#388,503 ▼ 493

Overall

Features & Capabilities

PerfExpert - Car Dyno HP Test turns your Android phone into a portable performance testing tool. Measure horsepower and torque with accuracy comparable to a professional chassis dynamometer, without an OBD adapter, cables, or expensive dyno sessions. Create a vehicle profile, mount your phone, perform a test run, and instantly view detailed power and torque curves.

Use Dyno mode to analyze engine performance, drivetrain losses, and power corrections, or measure acceleration with 0–60 mph, 0–100 km/h, quarter-mile, eighth-mile, trap speed, and other timed runs. Compare modifications such as ECU remaps, exhausts, intake systems, and turbo upgrades. View interactive charts, export results as PNG or CSV with PerfExpert Pro, share web reports, and optionally connect compatible RaceBox GPS devices for enhanced precision and rolling-start testing.

User Growth & Download Statistics

App Analytics Data Sports Navigation & Mapping

By:

Downloads:

Rating:

Version:

2.4.5 Last updated: 2026-08-28

Version code:

27290

Creation date:

2011-07-03

Publisher country:

Permissions:

android.permission.ACCESS_COARSE_LOCATION Very high risk
android.permission.ACCESS_FINE_LOCATION Very high risk
android.permission.BLUETOOTH_CONNECT Moderate risk
android.permission.BLUETOOTH_SCAN Moderate risk
android.permission.HIGH_SAMPLING_RATE_SENSORS Moderate risk
android.permission.ACCESS_ADSERVICES_AD_ID Low risk
android.permission.ACCESS_ADSERVICES_ATTRIBUTION Low risk
android.permission.INTERNET Low risk
android.permission.POST_NOTIFICATIONS Low risk
android.permission.RECEIVE_BOOT_COMPLETED Low risk

Size:

8.76MB

Price:

9.99

Email:

co*****@perfexpert-app.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-09-24

Compare stats and ranking:

Ranking

# 388,503 ▼ 493

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

PerfExpert

Google Play Store

https://play.google.com/store/apps/details?id=com.perfexpert

Email:

co*****@perfexpert-app.com

Website:

https://www.perfexpert-app.com

User Reviews

Users appreciate the app's detailed configuration options and potential for accurate dyno measurements when correctly calibrated. However, common issues include frequent crashes, difficulty completing calibration and runs, and inconsistent or inaccurate results especially at higher power levels. Many users report poor or no customer support and frustrations with app complexity and missing vehicle support. While some find it functional after effort, the overall experience is marred by technical instability and usability challenges.

Pros

The app provides very detailed and technical configuration options for various car models, which some users find attractive.
When calibration and settings are done correctly, the app can deliver accurate horsepower and torque measurements comparable to a real dyno.
Manual entry of weather data is available, helping to reduce unnecessary automatic updates.
The calibration process, although sometimes requiring multiple attempts, is considered manageable by some users.
The app supports custom gear ratios and vehicle parameters, offering a comprehensive dyno simulation experience.

Cons

The app frequently crashes and often fails to complete calibration or dyno runs, causing user frustration.
Results are reported as wildly inconsistent and inaccurate, especially when measuring horsepower over 400bhp, with values jumping significantly between runs.
Customer support is largely unresponsive, sometimes taking months to reply or failing to reply at all, leading to poor user assistance.
The app lacks support for certain cars or drivetrain configurations, such as automatic transmissions or specific gear inputs (e.g., 5th gear), limiting usability.
The calibration instructions and app interface lack clarity, making it difficult for users to perform correct setup; the app is described as temperamental and overly complicated for first-time users.

Recent reviews

App is horrible doesn't work correctly at all waste 15$ . Wish get refund tryed over 10 times get work never worked correctly

za*****, 2024-12-08

Wildly inconsistent and inaccurate results. Hp values jump around 120 hp doing a pass at the spot under the same conditions. Phone is very secure and calibrated. All car settings completed correctly. Simply not trustworthy even as a relative gains because it's so inconsistent. EDIT: yeah you are FOR SURE wrong. All instructions were carefully followed to the t. Typical greedy behavior, won't admit flaws, probably why you don't offer a trial version of the app. You know no one will buy it then.