Haltech Connect vs Gauge King

Monitor channels, read and clear diagnostic trouble codes, see and change settings. Perform initial setup of your Rebel ECU. This app allows you to connect to your Wi-Fi enabled Haltech Nexus ECU. In it you can view any channel as you would do within NSP, and change most settings and table contents. It also allows you to view diagnostic trouble codes (DTCs) and clear them, as well as configuration errors such as a setting value out of range. You can choose from a range of metric and imperial units. If you have a Rebel ECU, you can use this app to access the setup wizard to configure your ECU for the first time. Note: Nexus firmware version 1.26 or later is required to use the mobile app. This can be updated using NSP.

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.