MQBone

Diagnose, log and flash your car.

MQBone reads live data, records your runs and programs supported engine and gearbox controllers over OBD. On iPhone, iPad and Mac.

Requires MQBadapter, our OBD-II adapter.

MQBone's Home on iPad in landscape
MQBone's Home tab with vehicle, adapter, map, pops, fault code, datalog and launch control widgets

Live data

Every number, as you drive.

Gauges and graphs with running minimum and maximum. Mode 22 and HSL where the controller supports it.

The landscape cockpit with gauges for boost, engine speed, turbo speed, intake air temperature and knock

Logging

Record a run. Read it back.

Start by hand or on a trigger. A lead-in keeps the seconds before it. Scrub the graph, read every value at the cursor and choose which PIDs to draw.

A datalog of a full-throttle pull in the log viewer on iPad: engine speed, boost and lambda over 15 seconds
Fault codes for a Simos 18.10 engine and a DQ381 gearbox, with scan history

Diagnostics

Read and clear fault codes.

Engine and gearbox codes, controller information, scan history and adaptations. Free on every supported car.

Advanced Diagnostics

A full diagnostic tool, in your pocket.

Scan every module in the car, not just the engine and gearbox. Read and clear faults with plain-English descriptions, change coding and adaptations, run basic settings and output tests, and back up a module before you touch it.

Advanced Diagnostics on iPad: the Central Electrics module with identification, fault codes, coding, adaptations, measurements, backup and service functions
Advanced Diagnostics on iPhone: a full-car scan listing the gateway, engine, transmission, brakes and other modules with their fault counts
  • Full-car scan

    Every module the gateway reports, with part numbers and fault counts.

  • Coding

    Coding and long coding, with named bits where the definition has them.

  • Adaptations

    Read and change adaptation channels, with the original kept for undo.

  • Basic settings

    Run basic settings, output tests and service functions.

  • Live values

    Measurement values from any module, read as you watch.

  • Backup and restore

    Save a module's coding and adaptations before you change them.

  • Readiness

    OBD readiness and gateway installation list.

  • Scan history

    Every scan saved on your device, ready to compare or share.

Advanced Diagnostics subscription

US$50 a year on our website, or US$60 a year in the app. Cancel any time.

Subscribe for US$50/year

Flashing

Program over OBD.

Write your own calibration or full file. MQBone checks the car first and keeps a recovery path where the controller allows it.

  • Simos 18.1 Calibration · Full flash · Recovery · Unlock
  • Simos 18.10 Calibration · Full flash · Recovery · Unlock
  • DQ250 MQB (0D9) Calibration · Full flash · Recovery
  • DQ381 G1 Calibration only

DQ200 MQB and DQ500 (0BH / 0DL) on request. Check your car.

In development: MED17, MED9, MDG1 and Simos 19.

The flash setup step that detects a Simos 18.10 engine controller
The flash file step with a choice of a local file or a Tuner PIN

Tuner PIN

A tune from your tuner, by PIN.

Your tuner uploads the file and sends you a 6-digit PIN. It only works on your car, and the file is never stored on your phone.

ECU Controls

Maps, pops and launch, from Home.

With a tune that includes MQBpatch, change them from a Home widget, with Siri or on CarPlay. More about MQBpatch

  • Map

    Swipe between the maps in your tune.

  • Pops

    Tap to change the pops mode.

  • Launch control

    Pick a mode and set the launch rpm.

CarPlay

Your gauges on the car's screen.

Up to eight live gauges, fault codes and your tune's controls, right on the dashboard.

MQBone on CarPlay: the Live tab with eight airflow gauges, their lowest and highest readings, and a Record button

Features

Everything in the app.

  • Live gauges

    Gauges and graphs with running minimum and maximum, arranged the way you like.

  • Landscape cockpit

    Turn your iPhone sideways for a cockpit you size yourself. iPad has its own dashboard.

  • Mode 22 and HSL

    High-speed logging where the controller supports it, in metric or imperial.

  • Custom PIDs

    Import your own PID definitions from a CSV file, saved per car.

  • Triggered recording

    Start by hand or on a trigger, with a lead-in and an end delay.

  • Log viewer

    Scrub through a log, read every value at the cursor and pick the PIDs to draw.

  • Fault codes

    Read and clear codes, with controller info, scan history and adaptations.

  • Advanced Diagnostics

    Scan every module, with coding, adaptations, basic settings and output tests. Yearly subscription.

  • OBD flashing

    Write calibration or full files, with checks first and a recovery path.

  • ECU Unlocking

    Unlock a protected Simos 18.1 or 18.10 so it can take a tune.

  • Tuner PIN

    Flash a tune your tuner sends you with a 6-digit PIN. It only works on your car.

  • ECU Controls

    Switch maps, pops and launch control from Home. Needs a tune with MQBpatch.

  • Siri

    Change map, pops or launch, read codes or start a log by voice.

  • CarPlay

    Live gauges, fault codes and tune controls on the car's screen.

  • Home widgets

    Vehicle, adapter, faults, last log, motion and weather with density altitude.

  • iCloud sync

    Your cars, their setups and your Home layout follow you to every device.

  • Garage

    Every car saved by VIN with its own gauges, PIDs, units and history.

  • 27 languages

    Follows your device language, including right-to-left layouts.

Devices

One app, everywhere you work on the car.

Buy once and it's yours on every device with the same Apple Account.

MQBone's Home on a Mac
  • iPhone

    The full app, with a landscape cockpit for the car.

    iOS 26 or later
  • iPad

    Its own dashboard layout, with room for more gauges.

    iPadOS 26 or later
  • Mac

    The same app on your desk.

    macOS 26 or later
  • CarPlay

    Live gauges, fault codes and tune controls on the car's screen.

    With iPhone

MQBone connects through MQBadapter, our Bluetooth OBD-II adapter, sold separately.

Pricing

Free to start. Pay for what you use.

Free

On every supported car.

US$0no activation needed
Diagnostics
Fault codes and adaptations
Live data
Gauges, graphs, widgets and ECU Controls
Logs
Import, view and share

VIN activation

A one-time purchase for one car.

US$30on our website, through Stripe
US$40in the app, through the App Store
Recording
New CSV logs
Flashing
Files, Tuner PINs and ECU unlocking
Billing
One-time, no subscription
Buy online for US$30

Advanced Diagnostics

A yearly subscription for your account.

US$50a year on our website, through Stripe
US$60a year in the app, through the App Store
Scope
Every module, on every car on your account
Includes
Coding, adaptations, basic settings and output tests
Billing
Renews yearly, cancel any time
Subscribe for US$50/year

You'll also need MQBadapter to connect MQBone to your car. It's bought separately.

TestFlight

Join the TestFlight beta.

Try MQBone before it reaches the App Store, and help shape what comes next.

Coming soon to the App Store.

Questions about your car or adapter? Talk to the people who build it.