RGB OBD for Android

Your car's live data, on a dashboard worth looking at

Name: RGB OBD
Price: 149.00 AUD

RGB OBD turns an Android head unit or tablet into animated gauges, a drive computer and a diagnostic scanner — using the OBD-II port every modern car already has.

See it in action Buy the app

One app, the whole picture

Plug a Bluetooth OBD-II adapter into the diagnostic port your car has had since the early 2000s, and RGB OBD reads what the engine computer sees: revs, speed, temperatures, voltage, fuel — live, many times a second. It is built for the landscape screen of an Android head unit and works just as well on a phone or tablet.

Everything is drawn by the app itself — no ads, no accounts, no tracking, and the whole install is under one megabyte. Start it from one screen: gauges, vehicle scan, adapter pairing, settings, and a demo mode that shows every feature with simulated data before the app ever touches your car.

RGB OBD home screen with gauges, scan vehicle, adapter, settings and demo mode tiles — The home screen — one tap to the gauges, the scanner or the demo.

Live gauges, nine designs

Animated tacho and speedo dials with readouts for coolant temperature, battery voltage, throttle, engine load, intake temperature, fuel level, boost and learned gear. Nine dial designs — plus a full-screen trip computer — switch on the fly with the arrow buttons, and a long-press on most readout cells lets you choose what that cell shows.

RGB OBD Neo Cyan design: tachometer and speedometer dials with six readout cells — Neo Cyan — twin dials, six configurable cells, session max RPM and speed.

RGB OBD Ice Sweep gauge design — Ice Sweep — Cool sweeping arcs with mini dials for gear, load, fuel and battery

RGB OBD Muscle Green gauge design — Muscle Green — Big twin dials flanked by four green mini gauges

RGB OBD Retro Red gauge design — Retro Red — Centre tacho with digital speed and LED bar columns

RGB OBD Race Yellow gauge design — Race Yellow — Retro race cluster with timing, boost, battery and fuel side stacks

RGB OBD HUD Blue gauge design — HUD Blue — Clean head-up style with a big clock and dotted dial rings

RGB OBD Halo Blue gauge design — Halo Blue — Glowing halo rings around speed and revs, trip details in the centre

RGB OBD Ember Orange gauge design — Ember Orange — Single amber speed arc with rpm digits and big corner readouts

RGB OBD Pulse Red gauge design — Pulse Red — Single centre dial that layers speed and RPM in warm amber

A proper drive computer

The Trip Comp design tracks instant and average fuel economy (L/100km), fuel used, trip distance and estimated range — using the car's airflow sensor when it has one, or a manifold-pressure estimate when it doesn't. It learns your gear ratios as you drive, and a standing-start timer arms itself whenever you stop: 0–100 km/h and 400 m times, with your best runs kept. Long-press the trip to reset it, or the timer to clear the times.

RGB OBD trip computer: fuel economy, range, learned gear and 0-100 km/h timing — Trip Comp — economy, range, learned gear and a live 0–100 timer in one screen.

Scan the vehicle before the workshop does

One tap runs the full standard diagnostic sweep: check-engine status, stored, pending and permanent trouble codes with plain-English descriptions from the SAE catalogue, the freeze frame captured when a fault was confirmed, readiness monitors, fuel trims, the VIN and calibration ID, and exactly which readings your car supports. Codes can be cleared from the app — behind a confirmation that spells out what clearing really does.

It reads the standardised emissions and powertrain system that every OBD-II car exposes — the same data a generic workshop scan tool starts with.

RGB OBD vehicle scan report: VIN, protocol, emissions status, fuel trims and six trouble codes with descriptions — A scan report — vehicle details on the left, every trouble code explained on the right.

It watches the car so you can watch the road

Overheat & low-battery alerts

A full-screen flash and beep for hot coolant or a sagging battery, at thresholds you set. Tap the banner to silence that activation.

Over-rev warning

Set your redline and the app flashes when you cross it — or keep just the red zone on the dials and turn the banner off.

Warm-up guard

The rev readout stays tinted blue until the coolant passes 60 °C — a quiet reminder not to lean on a cold engine.

Auto-reconnect & launch on boot

A dropped link retries by itself, and on a head unit the gauges can start the moment the ignition powers the screen.

RGB OBD over-rev overlay flashing OVER-REV with the rpm and tap to silence over the gauges — The over-rev overlay in action — the whole screen flashes past the redline; tap to silence that activation.

Set up for your car, not a generic one

Pick your exact car — year, make, model and trim, from a catalogue of 16 makes as they were sold in Australia from 2000 on — and the app names it on screen and draws the make's badge faintly behind every page, as strong or subtle as you like. Gauge ranges, redline, engine size and tank capacity, alert thresholds and display scale are all yours to tune.

Settings — the car profile drives gauge ranges, the on-screen name and the badge.

Every setting, explained

Car

Year, Make, Model, Variant/trim name your exact car on screen and pick its badge. Engine size (L) and Fuel tank (L) feed the drive computer — economy estimation on cars without an airflow sensor, and the remaining-range figure.

Gauges

RPM redline draws the red zone and arms the over-rev alert. Tachometer max and Speedo max set the dial ranges. Speed adjustment (%) calibrates the OBD speed reading — 100 is no change; 105 shows 105 km/h when the car reports 100.

Alerts

Coolant alert (°C) and Low battery alert (V) set the flash-and-beep thresholds — 0 turns one off. Show over-rev overlay controls the full-screen redline banner pictured in the Alerts section above; untick it to keep the red zone on the dials without the banner.

Startup

Launch gauges when the device boots — made for head units that power up with the ignition, so the dials are on screen before you're out of the driveway.

Display

Device sizes the dashboard for your screen — leave it on Auto or pick a head-unit profile to preview one. UI scale (%) fine-tunes that. Badge (%) fades your make's emblem in behind every screen — 5 is a watermark, 0 turns it off.

Registration

Shown while the app is registered: the licensed VIN, and Deregister this Application for moving the licence to your next car — the workflow pictured in the Licensing section below.

What you need

Two things: an Android device (8.0 or newer — a head unit, tablet or phone) and a Bluetooth OBD-II adapter. The app is built and tested with the Vgate vLinker MC+ Bluetooth 4.0 OBD2 scanner — a dual-mode adapter that speaks both Bluetooth Classic and BLE, so it pairs with head units and modern phones alike.

Plugs into the OBD-II port — under the dash, driver's side, on most cars
Bluetooth Classic and BLE — the app supports both, no cables
Protocol is auto-detected, including older ISO 9141-2 cars
Widely available online for around the price of a tank of fuel

Other ELM327-compatible Bluetooth adapters generally work too, but the vLinker MC+ is the one we test every release with and recommend.

Vgate vLinker MC+ Bluetooth 4.0 OBD2 car diagnostic scanner — The Vgate vLinker MC+ — the adapter RGB OBD is tested with.

One licence, one car — moved whenever you are

RGB OBD is licensed to your vehicle, not to a device count. Registering takes a minute in the car: the app reads the VIN straight from the engine computer, shows it to you, and activates online. After that no internet is needed while driving — every connection simply confirms, locally and in under a second, that it's still your car on the other end.

Changing cars? Deregister from the settings screen — the app asks for your new car's VIN and moves the licence to it on the spot, ready to register in the new vehicle. The demo mode is always open, so you can explore the whole app before registering.

RGB OBD registration screen showing the VIN read from the vehicle — Registration — the app reads your VIN from the car and activates in seconds.

RGB OBD settings showing the registered VIN and the Deregister this Application button — Settings shows which VIN holds the licence — and the button that releases it.

RGB OBD deregister dialog asking for the new vehicle's VIN before transferring the licence — Deregistering asks for your new car's VIN — the licence moves the moment this car is released.

Buy RGB OBD for your car

$149.00 AUD

One payment, one vehicle licence — no subscription. Enter your car's VIN at checkout, pay securely through Stripe, and download the app straight away.

Buy this app

Prefer to talk first? Contact us — we're happy to help with the adapter and setup.