CarCoding vs Gauge King

Take full control of your car with CarCoding — an all-in-one OBD2 scanner, diagnostics and ECU coding app. Plug in any ELM327 Bluetooth (BLE) or Wi-Fi adapter and reach your vehicle's control units in seconds. Find out why the check engine light is on, clear fault codes, watch live engine data, and explore the hidden features your car shipped with. ▸ WHAT YOU GET • PROFESSIONAL OBD2 DIAGNOSTICS Read and clear DTC fault codes — standard P-codes plus manufacturer-specific codes. Check readiness monitors before an emissions test and scan multiple control units, not just the engine. • AI REPAIR ASSISTANT What does "P0420" actually mean? The built-in AI explains the likely cause, how urgent it is, and what to check first — in plain language, no jargon. • LIVE DATA & DIGITAL GAUGES Track RPM, coolant and oil temperature, boost pressure, fuel trim, battery voltage and more on customizable low-latency gauges. Record a session and export the log. • APPLE CARPLAY & SIRI CarCoding now runs on your car's screen. CarPlay lists live values in real time — speed, RPM, engine temperature, battery voltage and more — shows active fault codes, and alerts you when a value goes beyond a safe range. And you can just ask Siri: "What's my engine temperature?" • ECU CODING & HIDDEN FEATURES Read your control unit's coding data, back it up, and explore factory options such as mirror folding on lock, seatbelt chime, gauge sweep and lighting behavior. Expert Mode gives direct hex/byte access for advanced users. • VEHICLE COMPATIBILITY Diagnostics work on every OBD2-compliant car (US 1996+, EU petrol 2001+, diesel 2004+). Coding depends on brand, model and equipment — support is deepest on BMW F-series; on many other brands coding data can be read and analyzed but not written. • SUPPORTED ADAPTERS Works with quality ELM327 Bluetooth Low Energy (BLE) and Wi-Fi OBD2 adapters. ▪ Coding writes data to control modules. CarCoding backs up your data first — keep the ignition on and the connection alive during the process. Become the master of your own garage. Download CarCoding. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://carcoding.app/privacy.html

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.