apps / 549390700
PerfExpert - Car Dyno HP Test
Measure Real HP & Torque
Claude JOSEPH ANGELIQUE · Sports · $8.99 · US storefront
- rating
- 3.7 ★
- ratings
- 12
- updated
- Sep 5, 2026
- released
- Aug 8, 2012
v2.4.1
visible word pool · 8 words
title 29/30 chars · subtitle 24/30 chars
App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of PerfExpert - Car Dyno HP Test's pool that are public — the keyword field is not exposed by any API.
from the listing
Know your car's true performance. Turn your smartphone into a professional dyno. Measure the real horsepower and torque of your engine — within 2% of a chassis dynamometer — and time your car's acceleration. No OBD adapter, no cables, no expensive dyno sessions. Just mount your phone, accelerate, and get instant results. Test and compare performance upgrades. Whether you're verifying an ECU remap, testing a new exhaust, or tracking the effect of a chiptuning session,…
latest US reviews
★★★★★
Calibration
Once I go through the calibration routine, it gives me no choice to move onto a test-only a “back” button that takes me back to the “calibration” button, forcing me to start over, in a circle. What may I be doing wrong?
— Viper corvette stang lover
★★★★★
Helped tune and see HP gains with a turbo
If you get all the parameters right, it’s accurate to +- 5 HP. This app worked so well for me and helped me visualize and tune power gains for my old 86 300ZX, recently turbocharged.
— UlyZ300
★★★★★
Don’t do it
Does not work at all
— Tasheemie
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