TSD Rally Computer

TSD Rally Computer

For manual odo entry classes

2 ratings
1 review
$24.99

Details

  • Released
  • Updated
  • April 23, 2014
  • June 27, 2026

Features

TSD Rally Computer screenshot #1 for iPad
TSD Rally Computer screenshot #2 for iPad
TSD Rally Computer screenshot #3 for iPad
TSD Rally Computer screenshot #4 for iPad
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About

This app assists in navigating traditional time-speed-distance automobile rallies that require manual odometer entry. It simplifies complex calculations, allowing drivers to accurately track their progress and maintain the required speeds. Features include customizable time and distance measurements, odometer calibration, and real-time speed comparisons.

Manual odometer entry for TSD rallies
Odometer calibration
Customizable time and distance units
Real-time speed comparison with 'Speed Up'/'Slow Down' indicators
MFi controller support
Adjustable internal clock
Preselect next speed changes
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What's New in TSD Rally Computer

7.6

June 27, 2026

- Added iOS 18 requirement for Local Network Access and Bonjour connectivity with Rally Computer Remote heads-up app. - Users should verify that this app and the Rally Computer Remote app are both able to access the Local Network. Find the permissions in Settings/Privacy & Security/Local Network on mobile devices.

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User reviews

Overly Complicated

This app was overly complicated and hard to use. I read the ENTIRE BOOK of instructions and still was confused. My boyfriend and I both work in the tech industry and neither of us could understand why the User Interface was so complicated. There were multiple steps before you could do anything within the app. While I'm navigating I need fewer things to keep track of, not more. We ended up only using this as our official clock and nothing else.
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Response from developer

Manual inputs and the variety and extent of the optional features needed to run a modern TSD rally without use of GPS signals and automatic computations are necessarily numerous. However, these are all responsive the instructions and computations that are typically present in unequipped rally class situations.

Developer apps

FAQ

What is TSD Rally Computer used for?

TSD Rally Computer is an iPad app designed to simplify the computations needed for traditional time-speed-distance (TSD) automobile rallies that require manual odometer entry. It helps users calibrate their odometer, track progress, and maintain prescribed speeds.

Does TSD Rally Computer support different units of measurement?

Yes, TSD Rally Computer supports distance measurements in either miles or kilometers. It also offers clock time displays in minutes and seconds to tenths of a second, or decimal minutes to thousandths of a minute.

Can I use a controller with TSD Rally Computer?

Yes, Apple-approved MFi game controllers can be used with TSD Rally Computer when connected via Bluetooth. This allows for easier input and control during rallies.

How accurate is TSD Rally Computer for speed tracking?

The app compares the actual speed over the course with the expected speed as time passes and the odometer is incremented. It displays the difference in seconds or hundredths of a minute, providing 'Speed Up' or 'Slow Down' indications to help users stay on pace.

What is the price of TSD Rally Computer?

TSD Rally Computer is a paid application, priced at $24.99. There are no in-app purchases or subscription fees associated with its use.

How often is TSD Rally Computer updated?

The latest version of TSD Rally Computer is 7.5.2, which was last updated on April 16, 2023. This indicates a history of updates, though the frequency may vary.

Is TSD Rally Computer suitable for beginners in rallying?

The app is designed to simplify complex calculations, which can be beneficial for beginners. However, understanding the fundamentals of TSD rallying is still recommended for optimal use.

What devices is TSD Rally Computer compatible with?

TSD Rally Computer is specifically designed for iPads and is compatible with all supported iPad models. It is not available for iPhone or other Apple devices.