Comparison

ACC Toolbox vs SimClient

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ACC Toolbox

This app helps sim racers optimize their performance in Assetto Corsa Competizione. It provides fuel estimates based on race parameters and details on ECU maps for strategic advantage. It supports various DLCs and system themes.

Highlights
  • 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
Features
Read full description

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

About

SimClient

Features
Read full description

Turn your iPhone or iPad into a dedicated dashboard unit (DDU) for use with sim racing and driving games. Built for hands-off reliability, SimClient keeps your display awake, reconnects fast, and lets you switch seamlessly between multiple SimHub* servers — so you spend less time configuring and more time behind the wheel. SimClient connects to your existing SimHub* server and mirrors live dashboards directly on your iOS device. Perfect for: • Budget conscious sim rigs • Cramming one extra info screen into your setup • Repurposing an old iPhone or iPad into a high-res dashboard • Eliminating tapping to keep your screen awake during long sessions Works with SimHub* compatible titles, tested with and including: • Assetto Corsa • Euro Truck Simulator 2 • American Truck Simulator *Requires SimHub installed and running with Dashboard functionality enabled, and both devices connected to the same network.

Screenshots

ACC Toolbox4 screens
SimClient4 screens

Verdict

The call

The clearest difference is update cadence: SimClient at every 9 days against ACC Toolbox's every 3 weeks. ACC Toolbox's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ACC Toolbox ships an update every 3 weeks, SimClient every 9 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
ACC Toolbox versus SimClient: the parameters behind the verdict, then further details
ParameterACC ToolboxSimClient
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size31 MB4 MB
Age rating4+4+
DeveloperMatthew MorganChristopher Verringer

In-app purchases

None

ACC Toolbox

No in-app purchases

None

SimClient

No in-app purchases

Questions

Is ACC Toolbox free?
ACC Toolbox is free to download, with no in-app purchases.
Is SimClient free?
SimClient is free to download, with no in-app purchases.
Do ACC Toolbox or SimClient have ads?
Neither ACC Toolbox nor SimClient shows ads.
Which is updated more often, ACC Toolbox or SimClient?
ACC Toolbox ships an update every 3 weeks, and SimClient every 9 days. Most recently, ACC Toolbox was updated on November 3, 2026 and SimClient on October 31, 2026.

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