# ACC Toolbox

> Assetto Corsa Competizione sim racing utility for fuel and ECU map optimization. (iPhone/iPad app by Matthew Morgan.)

- Source: https://appshunter.io/ios/app/acc-toolbox/id6448527671 (this page in markdown: same URL + `.md`)
- Developer: [Matthew Morgan](https://appshunter.io/developer/1684925312)
- Category: Utilities, Entertainment
- Price: Free (on sale, was $2.99)
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 31 MB
- Languages: English
- Released: 2023-04-28
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/acc-toolbox/id6448527671/reviews.md

## What is ACC Toolbox?

Made for Assetto Corsa Competizione.

Enter a car class, track, and stint length to get a estimate of how much fuel to add to the tank.

View details of the different ECU maps in all cars to understand when to use them and gain an advantage in your races.

Supported content:
- Base game
- Intercontinental GT Pack
- GT4 Pack
- British GT Pack
- 2020 GT World Challenge Pack
- American Track Pack
- 2023 GT World Challenge Pack

Supports system dark/light theme.

Made with Flutter.

Track lap times calculated from the RaceApp database: https://raceapp.eu/LapRecords

ECU map information from Aristotelis' post on the Assetto Corsa forum:
https://www.assettocorsa.net/forum/index.php?threads/ecu-maps-implementation.54472/

Wheel rotation information from Ross McGregor's post on Traxxion.gg:
https://traxion.gg/how-steering-lock-is-key-to-lap-time-in-assetto-corsa-competizione/

And Grant Campbell's post on Coach Dave Academy:
https://coachdaveacademy.com/tutorials/correct-steering-locks-and-ratios-in-acc/

Helmet outline icon made by Freepik: https://www.flaticon.com/authors/freepik
From: https://www.flaticon.com

## Key features

- Fuel calculation for race stints
- ECU map details and usage
- Support for multiple DLCs
- System dark/light theme support
- Lap time data integration
- Wheel rotation information

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/acc-toolbox/id6448527671/reviews.md

### 5/5 — Very accurate! I love this app!

*2025-02-16*

I just wish we could get an update with Red Bull Ring, and Nords. Otherwise, it’s my go to app for accurate fuel calculations.

## Frequently asked questions about ACC Toolbox

### What is ACC Toolbox?

ACC Toolbox is a utility app designed for Assetto Corsa Competizione players. It helps estimate fuel needed for races and provides details on ECU maps to improve race strategy.

### Does ACC Toolbox have ads?

No, ACC Toolbox does not contain advertisements. It is a completely ad-free experience for users.

### What content does ACC Toolbox support?

ACC Toolbox supports the base game of Assetto Corsa Competizione along with several DLCs, including the Intercontinental GT Pack, GT4 Pack, British GT Pack, 2020 GT World Challenge Pack, American Track Pack, and 2023 GT World Challenge Pack.

### How accurate is the fuel calculation in ACC Toolbox?

The fuel calculation is an estimate based on the car class, track, and stint length you input. It aims to provide a helpful starting point for your race fuel strategy.

### Where does ACC Toolbox get its data?

Information for ACC Toolbox is sourced from reputable sim racing communities and resources, including RaceApp for lap times, Aristotelis' forum posts for ECU maps, and Traxxion.gg/Coach Dave Academy for wheel rotation data.

### Is ACC Toolbox available on Android?

ACC Toolbox is currently available for iPhone, iPad, and iPod. It is developed using Flutter, which often allows for cross-platform compatibility in future updates.

### How often is ACC Toolbox updated?

The app was last updated on March 19, 2025, indicating active development and support. Users can expect ongoing improvements and potential new features.

### What is the age rating for ACC Toolbox?

ACC Toolbox has an age rating of 4+, making it suitable for a wide range of users. This rating suggests no mature content is present within the application.

## Version history (last 5 releases)

### 1.6.1 — 2025-03-19

- Ads have been fully removed from the app.
- Red Bull Ring and Nordschleife (untested, use with caution) added.
- Wheel rotation data added for GT2 cars and Ford Mustang GT3.

### 1.6.0 — 2025-03-18

- Ads have been fully removed from the app.
- Red Bull Ring and Nordschleife (untested, use with caution) added.
- Wheel rotation data added for GT2 cars and Ford Mustang GT3.

### 1.5.2 — 2023-08-10

Fixed issue where users of comma decimal point could not enter fuel usage.

### 1.5.1 — 2023-07-18

Minor updates to Valencia laptimes and Ferrari 296 wheel rotation.

### 1.5.0 — 2023-05-05

Added support for 2023 GT World Challenge Pack
Fixed incorrect wheel rotation values
Improved stability

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## More apps by Matthew Morgan

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All apps by Matthew Morgan: https://appshunter.io/developer/1684925312

## Related topics

[assetto corsa competizione](https://appshunter.io/ios/topics/assetto-corsa-competizione)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*