Log Dyno

Log Dyno

Measure Torque & Horsepower

1 ratings
12 reviews
#157 in paid Sports
🔧 Utilities
⚽ Sports
$13.99

Details

  • Released
  • Updated
  • March 3, 2019
  • May 10, 2022

Features

Log Dyno video #1 for iPhone
Log Dyno video #2 for iPhone
Log Dyno screenshot #3 for iPhone
Log Dyno screenshot #4 for iPhone
Log Dyno screenshot #5 for iPhone
Log Dyno screenshot #6 for iPhone
Log Dyno screenshot #7 for iPhone
Log Dyno screenshot #8 for iPhone
Log Dyno screenshot #9 for iPhone
Log Dyno screenshot #10 for iPhone
Log Dyno screenshot #11 for iPhone
Log Dyno screenshot #12 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

This app analyzes your car's datalog files to measure torque and horsepower using your mobile device. It provides detailed analysis, recommends optimal gear shifts, and allows comparison of multiple measurements.

Measure torque and horsepower from datalogs
Virtual dyno analysis
Optimal gear shift recommendations
Compare multiple measurements
Supports various datalog file formats
Customizable vehicle data input
Show original description

What's New in Log Dyno

1.08.04

May 10, 2022

-Added smoothing options 10, 20, 30, 40 -Lowered Log Data RPM minimum value to 1 from 10 These only mean more measurement adjustability

More

Charts

Top Paid

📈 157+1

Sports

This app rose +1 position in Sports chart.

Last updated on July 21, 2026.

User reviews

Waste of Money

- Bad Interface
- Hard to use
- Not even worth 1.99$
- Regret the waste of money

This works.

This app works if you use it correctly. Is comparable to other virtual dynos you will find on the web.

It does what it’s supposed to

It’s an APP that will give you an estimate of whp, Set your parameters right and it will be close, not perfect but close. Again it’s an app not a real Dyno

Adapt to other displays please

I would say it’s okay.
But the iPhone 12 Pro Max, as I have, has rounded corners and a notch above.
Please adapt it more to this type of display.
It’s a pain to use it. Many buttons close to the bottom border, triggering the „home button“ on those phones. Really looking weird to have options and buttons inside or nearby the notch.
Please fix this.
Show more

Support / Developer Vanished

Don't purchase this app for now is my suggestion. The support and developer sites are now gone. So I cannot follow up with questions from prior contact BEFORE I bought Log Dyno. Hopefully support will return in the futures.

Developer apps

FAQ

How accurate is Log Dyno's measurement?

Log Dyno's measurements are reported to be spot on when compared to real-life dyno sheets and with multiple different vehicles. Accuracy depends on correctly setting your vehicle data, such as weight, tire size, and drag coefficient.

What datalog files can Log Dyno use?

Log Dyno can use any CSV or MSL file containing RPM data. It specifically lists support for JB4, MHD, ProTool, COBB, MegaSquirt, and Bootmod3, among others.

Can I compare different dyno runs with Log Dyno?

Yes, you can save each of your dyno measurements and compare them interactively within the app. This allows for easy analysis of performance changes.

What vehicle data does Log Dyno require?

Log Dyno requires specific vehicle data for accurate measurements, including Car Name, Weight, Tank Capacity, Tire Size, DT%, Drag Coefficient, and Frontal Area.

Does Log Dyno have ads?

No, Log Dyno does not contain advertisements. It is a paid application.

What power and torque units does Log Dyno support?

Log Dyno supports various power units including WHP, BHP, PS, and KW. For torque, it supports LB-FT and NM, and can measure at the wheels or at the crank.

What correction types are available in Log Dyno?

Log Dyno offers several correction types for measurements, including Uncorrected, SAE J1349, STD, DIN 70020, and ISO 1585.

How often is Log Dyno updated?

The latest version of Log Dyno is 1.08.04, last updated on May 10, 2022. This indicates that updates are not very frequent.