Comparison

Gauge King vs iThrottle BTX

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

Head to head
About

Gauge King

Features
Read full description

Gauge King turns your iPhone into a clean, customisable digital gauge dashboard for your car. Connect a compatible Bluetooth OBDII reader and view live vehicle telemetry in a modern dashboard designed for drivers, enthusiasts, and anyone who wants a clearer view of what their car is doing. Build your own gauge layout, choose the data that matters to you, and monitor key information in real time. Gauge King can display supported vehicle data such as: RPM Speed Coolant temperature Intake air temperature Throttle position Engine load Battery voltage Fuel-related data as well as shift light layouts, calculated horsepower/Kw data and much more. Gauge King also includes Demo Mode, allowing you to experience the dashboard using simulated telemetry even when you are not connected to an OBDII reader. This is useful for trying layouts, testing gauges, previewing the app, or seeing how the dashboard feels before connecting to a vehicle. Features include: Customisable digital gauge dashboards Audible warnings based on configurable thresholds Apple CarPlay support Compatible Bluetooth OBDII reader support Live vehicle telemetry where supported by the vehicle and adapter Demo Mode with simulated data Performance-inspired gauge layouts Clear connection status Designed for car enthusiasts and everyday drivers Gauge King is built to make vehicle data easier to see, understand, and enjoy. Important notes: Gauge King requires a compatible Bluetooth OBDII reader for live vehicle telemetry. Available telemetry depends on your vehicle, OBDII adapter, and supported sensors. Demo Mode uses simulated data and does not show real vehicle information. Gauge King is intended for information and display purposes only. Always drive safely and follow local road rules. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/⁠

About

iThrottle BTX

Features
Read full description

iThrottle Controller App – Take full control of your vehicle’s throttle response straight from your smartphone. Personalise your experience by selecting from three unique interface layouts and a range of colour themes to match your vehicle’s interior. Instantly switch between driving modes including Boost, Towing, Crawl, Winch, Sand/Mud, Economy, and more. Fine-tune every mode to create the perfect balance of performance, comfort, and style for any driving condition.

Screenshots

Gauge King4 screens
iThrottle BTX4 screens

Verdict

The call

The clearest difference is in-app purchases: iThrottle BTX at none against Gauge King's 1. iThrottle BTX also leads on iOS requirement (15.6 vs 17.2). Gauge King's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Gauge King sells 1 in-app purchase, starting at $9.99 per year. iThrottle BTX asks for nothing beyond the download.

UpkeepUpdate frequency

Gauge King ships an update weekly, iThrottle BTX every 2 months. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

Scorecard3 real differences Β· 3 level
Gauge King versus iThrottle BTX: the parameters behind the verdict, then further details
ParameterGauge KingiThrottle BTX
PriceFreeFree
Update frequencyWeekly β€” betterEvery 2 months
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.215.6 β€” better
Further details β€” not scored
Size12 MB31 MB
Age rating4+17+
DeveloperMark RossiThrottle Australia Pty Ltd

In-app purchases

1 purchases

Gauge King

Subscriptions1
  • Gauge King Premium7 Days trial$9.991 Year
None

iThrottle BTX

No in-app purchases

Questions

Is Gauge King free?
Gauge King is free to download, with in-app purchases available.
Is iThrottle BTX free?
iThrottle BTX is free to download, with no in-app purchases.
Do Gauge King or iThrottle BTX have ads?
Neither Gauge King nor iThrottle BTX shows ads.
Which is updated more often, Gauge King or iThrottle BTX?
Gauge King ships an update weekly, and iThrottle BTX every 2 months. Most recently, Gauge King was updated on November 13, 2026 and iThrottle BTX on November 10, 2026.

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