Updating
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#88 in Top Paid Apps > Sports
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#91 in Top Paid iPad Apps > Sports
iPhone Screenshots
iPad Screenshots
Description
Turn your smartphone into a powerful onboard dyno!
Measure your car’s real engine power and torque with 2% accuracy — all by performing a simple acceleration!
Verify the effectiveness of your tuning, remaps, or upgrades with an independent, objective, and affordable solution.
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What is PerfExpert?
PerfExpert – Car Onboard Dyno & Timer is a professional-grade app that lets you measure your car’s real performance:
• Engine power & torque curves
• 0–60 mph / 0–100 km/h acceleration times
• Quarter mile / 400 m times, and more.
All tests are performed using just your phone — no connection to your car required. Results come in detailed reports with interactive charts.
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How does the dyno work?
1. Create your car profile
Enter key specs like curb weight, tire size, and displacement. If you’re unsure, the app helps you find them.
2. Mount your phone securely
No need for OBD or external sensors. PerfExpert uses your phone’s internal sensors to capture acceleration accurately.
3. Perform a full-throttle pull
On a flat, straight road, accelerate from low revs to redline in one gear — done!
Note: Dyno tests are not compatible with automatic gearboxes that lack a manual mode.
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What can you do with PerfExpert?
• Evaluate ECU remaps, chip tuning, and intake/exhaust mods
• Track changes after hardware upgrades or chassis setup changes
• Share dyno reports with your tuner or friends
• Export your runs as interactive charts and raw data
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Sample reports & FAQ
• Featured results: https://www.perfexpert-network.com/results/featured
• FAQ: https://www.perfexpert-app.com/faq
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Join the community
• Facebook page: https://www.facebook.com/PerfExpert
• User group & support: https://www.facebook.com/groups/perfexpert/
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Key features
• Dyno Test:
Accurately measure horsepower and torque. Includes rev limiter detection and power loss modeling.
• Correction standards:
Apply standard corrections (DIN, SAE, ISO, JIS, CEE) using real-time ambient conditions (pressure, temperature, humidity).
• Timed Run Test:
Measure acceleration and distance milestones: 0–60 mph, 0–1/4 mile, 0–100 km/h, and more.
• High-frequency sensor use:
Maximum precision thanks to high-rate accelerometer sampling and advanced smoothing.
• Connect to external GPS devices like RaceBox Mini, Mini S, Micro, RaceBox.ru, or VBox Sport for even higher accuracy and features like rolling start dyno runs (requires PerfExpert Pro su).
• Share results online with a public web link, viewable on the PerfExpert Network
• Custom units:
Supports a wide range of units: Hp, Ch, Nm, Ft.lb, m/s², °C, psi, km/h, mph, m, ft, etc.
• Results can be exported as TSV data file or PNG image.
Privacy Policy: https://www.perfexpert-app.com/privacy-policy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What's New in Version 2.3.1
New in 2.3.1:
• Fixed an issue where sensor rate and smoothing were incorrectly calculated when opening results created before version 2.3.0
New in 2.3.0:
• Added support for external GPS devices: Racebox.ru, RaceBox Mini, Mini S, and Micro (PerfExpert Pro subscription required)
• Added the ability to make a support request about a result
• Improvements to internal sensors mode:
• Removed mandatory calibration
• Prevented START button if the car is not fully stopped
• Improved accuracy
• Bug fixes and stability improvements
Seller
Name
Claude JOSEPH ANGELIQUE
Information
Developer
Version
2.3.1
Size
26 MB
Game Center
No
VPP Device Licensing
Yes
Rating
Rated: 17+
Compatibility
iOS 15.0 or later
Devices
iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SE (3rd generation), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, iPhone 17e, iPad (5th Generation) Wi-Fi, iPad (5th Generation) Wi-Fi + Cellular, iPad (6th generation) Wi-Fi, iPad (6th generation) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9.7-inch), iPad Pro (9.7-inch) (Cellular), iPad Pro 12.9-inch (2nd generation), iPad Pro 12.9-inch (2nd generation) Wi-Fi + Cellular, iPad Pro (10.5-inch), iPad Pro (10.5-inch) Wi-Fi + Cellular, iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12.9-inch (3rd generation), iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5th Generation), iPad mini (5th Generation) Wi-Fi + Cellular, iPad (7th generation) Wi-Fi + Cellular, iPad Pro 11-inch (2nd generation), iPad Pro 11-inch (2nd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (4th generation), iPad Pro 12.9-inch (4th generation) Wi-Fi + Cellular, iPad Air (4th Generation) (Wi-Fi), iPad Air (4th Generation) (Wi-Fi + Cellular), iPad (8th generation) Wi-Fi, iPad (8th generation) Wi-Fi + Cellular, iPad Pro 11-inch (3rd generation), iPad Pro 11-inch (3rd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (5th Generation), iPad Pro 12.9-inch (5th Generation) Wi-Fi + Cellular, iPad (9th Generation), iPad (9th Generation) Wi-Fi + Cellular, iPad mini (6th Generation), iPad mini (6th Generation) Wi-Fi + Cellular, iPad Air (5th generation), iPad Air (5th generation) Wi-Fi + Cellular, iPad Pro 11-inch (4th generation), iPad Pro 11-inch (4th generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (6th generation), iPad Pro 12.9-inch (6th generation) Wi-Fi + Cellular, iPad (10th generation), iPad (10th generation) Wi-Fi + Cellular, iPad Air 11-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi + Cellular, iPad Pro 11-inch (M4) Wi-Fi, iPad Pro 11-inch (M4) Wi-Fi + Cellular, iPad Pro 13-inch (M4) Wi-Fi, iPad Pro 13-inch (M4) Wi-Fi + Cellular, iPad mini (A17 Pro) Wi-Fi, iPad mini (A17 Pro) Wi-Fi + Cellular, iPad (A16) Wi-Fi, iPad (A16) Wi-Fi + Cellular, iPad Air 11-inch (M3) Wi-Fi, iPad Air 11-inch (M3) Wi-Fi + Cellular, iPad Air 13-inch (M3) Wi-Fi, iPad Air 13-inch (M3) Wi-Fi + Cellular, iPad Pro 11-inch (M5) Wi-Fi, iPad Pro 11-inch (M5) Wi-Fi + Cellular, iPad Pro 13-inch (M5) Wi-Fi, iPad Pro 13-inch (M5) Wi-Fi + Cellular, iPad Air 11-inch (M4) Wi-Fi, iPad Air 11-inch (M4) Wi-Fi + Cellular, iPad Air 13-inch (M4) Wi-Fi, iPad Air 13-inch (M4) Wi-Fi + Cellular, iPod touch (6th Generation), iPod touch (7th generation)
Languages
English, Bulgarian, French, German, Hebrew, Italian, Norwegian Bokmål, Polish, Portuguese, Russian, Spanish, Swedish
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Ratings & Reviews
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App Store: Customer Reviews
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