Gauge King vs iThrottle BTX
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Gauge King
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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/β
iThrottle BTX
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iThrottle Controller App β Take full control of your vehicleβs 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 vehicleβs 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
Verdict
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
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.
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.
| Parameter | Gauge King | iThrottle BTX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly β better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.2 | 15.6 β better |
| Further details β not scored | ||
| Size | 12 MB | 31 MB |
| Age rating | 4+ | 17+ |
| Developer | Mark Ross | iThrottle Australia Pty Ltd |
In-app purchases
Gauge King
- Gauge King Premium7 Days trial$9.991 Year
iThrottle BTX
No in-app purchases
Questions
Is Gauge King free?
Is iThrottle BTX free?
Do Gauge King or iThrottle BTX have ads?
Which is updated more often, Gauge King or iThrottle BTX?
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