Harry's Dyno
Harry's Dyno
Download on App Store

This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.

Logo of Harry's Dyno
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Harry's Dyno

Stop guessing. Harry's Dyno hands users hard numbers on their ride's real-world punch.

Key Figures

Downloads

1k+

User Rating

3.5/5

Total Ratings

0

Publisher

Harald Schlangmann

Category

Sports

Locales

8

Latest Version

25.0.0

Size

40.7 MB

First Released

Sep 26, 2016
Features

An analytical overview of key features for automotive enthusiasts.

Harry's Dyno: Performance Analysis & Optimization

High-Precision Performance Measurement

The app provides highly accurate vehicle performance data by leveraging both internal GPS and external OBD-II/advanced GPS sensors, with OBD adapters preferred for instant speed changes, fulfilling the critical need for precise measurements in high-powered vehicles and short speed ranges.

Detailed Data Analysis and Comparison

This tool enables in-depth analysis and comparison of performance results, including a two-cursor mode for inspecting specific data subranges, which is vital for data-driven optimization by tuners and racers.

Customizable Speed Range Testing

It allows users to define and test arbitrary speed ranges, such as 0-60 mph or 100-200 km/h, providing tailored performance insights crucial for specific tuning goals and race analysis.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Harry's Dyno - Users are greeted by the app's iconic red car graphic and the important disclaimer, setting the stage for serious performance tracking.

Users are greeted by the app's iconic red car graphic and the important disclaimer, setting the stage for serious performance tracking.

Welcome to Harry's

Harry's Dyno - The central navigation provides intuitive access to 'Performance' testing and 'Results' analysis, empowering users to quickly manage their dyno runs.

The central navigation provides intuitive access to 'Performance' testing and 'Results' analysis, empowering users to quickly manage their dyno runs.

Core Navigation Hub

Harry's Dyno - This screen displays real-time performance metrics, including the large current time readout and adjustable 'Start Speed' and 'Stop Speed' parameters for precise testing.

This screen displays real-time performance metrics, including the large current time readout and adjustable 'Start Speed' and 'Stop Speed' parameters for precise testing.

Live Performance View

Harry's Dyno - Users can review a comprehensive 'Lap List' of past performance runs, effortlessly filtering by 'Day' or 'Session' to find specific test data.

Users can review a comprehensive 'Lap List' of past performance runs, effortlessly filtering by 'Day' or 'Session' to find specific test data.

Detailed Run History

Harry's Dyno - The app provides detailed chart analysis, allowing users to pinpoint specific moments with a single vertical cursor and review granular data like 'GPS mph' and 'Lateral g' forces.

The app provides detailed chart analysis, allowing users to pinpoint specific moments with a single vertical cursor and review granular data like 'GPS mph' and 'Lateral g' forces.

Precision Data Charts

Harry's Dyno - This view showcases the powerful two-cursor mode, enabling users to analyze precise sub-ranges of data, revealing critical metrics like 'delta Distance' and 'delta Time' between custom points.

This view showcases the powerful two-cursor mode, enabling users to analyze precise sub-ranges of data, revealing critical metrics like 'delta Distance' and 'delta Time' between custom points.

In-Depth Range Analysis

Harry's Dyno - The 'Administration' section allows users to customize the app, managing their 'Vehicle List' and configuring various 'Sensor List' options for optimal performance data acquisition.

The 'Administration' section allows users to customize the app, managing their 'Vehicle List' and configuring various 'Sensor List' options for optimal performance data acquisition.

App Configuration Hub

Harry's Dyno - This screen provides a comprehensive 'Sensor List', showing the compatibility and connection status of various external 'GPS/GLONASS sensors' for enhanced measurement precision.

This screen provides a comprehensive 'Sensor List', showing the compatibility and connection status of various external 'GPS/GLONASS sensors' for enhanced measurement precision.

Sensor Connectivity Check

Description

Harry's Dyno is a high precision performance measuring app. It utilizes GPS and OBD sensor input to recognize arbitrary speed ranges like 0-60 mph or 100-200 km/h. Both acceleration and deceleration testing is supported. Results can be compared and analyzed in details. Using two-cursor mode, one can inspect subranges of data recorded (e.g. 80 to 120 km/h for a 0 to 200 km/h). Data is stored locally and can be filtered by speed range and vehicle used. It can be exported to various data formats too. Provided the smartphone is mounted in a position with good GPS accuracy, the internal GPS can be used for measurements. For short speed ranges, high powered vehicles, and highest precision, either external GPS or OBD sensors can be connected. OBD adapters are actually preferable as speed changes are available instantly. We have an always up to date list of compatible accessories available here: www.gps-laptimer.de/compatibility/ios For distance based performance testing (quarter mile etc), please use Harry's LapTimer currently. This mode will be added to Harry's Dyno as a free upgrade shortly. For Harry's LapTimer users! Harry's LapTimer GrandPrix has received a free feature upgrade and includes Harry's Dyno functionality now: please follow LapTimer ‣ Race ‣ Performance to use the dyno mode. In case you have used Harry's LapTimer Petrolhead so far, you may either upgrade it to GrandPrix (LapTimer ‣ Administration ‣ Add-ons), or go for Harry's Dyno as a separate app. Enjoy and let us know what you think! For questions, tipps & tricks, and support, please use our forum www.gps-laptimer-forum.de

Download

Download on App Store

This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.