OBD Fusion

OBD Fusion

By OCTech, LLC

  • Category: Travel
  • Release Date: 2013-06-02
  • Current Version: 6.3.0
  • Adult Rating: 4+
  • File Size: 113.59 MB
  • Developer: OCTech, LLC
  • Compatibility: Requires iOS 15.0 or later.
Score: 4.72885
From 17,020 Ratings


OBD Fusion is an app for your car that allows you to read OBD2 vehicle data directly from your iPhone, iPod Touch, or iPad. You can clear your check engine light, create custom dashboards, read diagnostic trouble codes, estimate fuel economy, and much more! Is your check engine light on? Do you want to monitor fuel economy and usage in your vehicle? Do you want cool looking virtual dashboards on your iPhone or iPad? If so, then OBD Fusion is the app for you! OBD Fusion is used by professional mechanics, do-it-yourself mechanics, and vehicle owners who want to monitor their vehicle and daily driving habits. Drive smarter, improve your fuel economy, and keep your engine healthy! IMPORTANT NOTE: You must have a Wi-Fi ELM327 compatible adapter or compatible Bluetooth LE adapter such as Veepeak BLE/BLE+ 4.0 adapter, Carista BLE adapter, OBDLink MX+, OBDLink CX, Tonwon BLE adapter, LELink BLE adapter, Viecar BLE adapter, Lonauto adapter, Vgate iCar Bluetooth 4.0, BAST BLE adapter, Kiwi 3/4 to use this app. OBD Fusion is not compatible with generic ELM Bluetooth scan tools. Checkout additional adapters here: https://www.obdsoftware.net/software/obdfusion OBD Fusion supports all OBD2 and EOBD vehicles sold worldwide. If you're not sure whether your vehicle is OBD2 or EOBD compliant, see this page for more information: https://www.obdsoftware.net/support/knowledge-base/how-do-i-know-whether-my-vehicle-is-obd-ii-compliant/. OBD Fusion can also connect to some JOBD vehicles that don’t support standard OBD2 protocols. Electric vehicles (EVs) are not required to have OBD2 diagnostics since they are emissions exempt. If you are interested in using OBD Fusion on an EV, contact us first to inquire about support. OBD Fusion has a ton of features including: - Read and clear emissions-related trouble codes (fault codes) and your Check Engine Light (MIL)
 - View vital driving information on your CarPlay screen. Note that real-time gauges are not supported by CarPlay, so you can't view your OBD Fusion pages such as dashboards on CarPlay. - With optional enhanced diagnostic add-ons, you can read and clear enhanced trouble codes on other modules such as ABS, SRS, etc. and read transmission temperature. An enhanced diagnostic add-on is required for this functionality. - Real-time dashboard display with fully customizable gauges. Create your own dashboards with the gauges that you want to see. - Performance calculations for 1/4 mile and 0-60 mph track times - Fuel economy MPG (US and UK), l/100km or km/l calculation - Full diagnostic report that can be stored and shared - Real-time graphing of multiple signals - Multiple trip meters
 - Log data to CSV file - Create custom enhanced PIDs - Includes some built-in enhanced PIDs for Ford and GM vehicles - Display Boost pressure in real-time - Display Engine Power and Torque - Display calculated Air-to-fuel ratio - Display battery voltage
 - Read freeze frame data
 - Fully customizable units including English, Imperial, and Metric units
 - Over 150 supported PIDs
 - Display vehicle information including VIN and calibration ID
 - Emissions readiness for each US state. Find out if your car will pass emissions inspection. - Oxygen Sensor Results (Mode 05)
 - On-board Monitoring Tests (Mode 06)
 - In-performance Tracking Counters (Mode 09)
 - GPS tracking - plot vehicle parameters on a map - Integrated iCloud and Dropbox functionality - Available in English, Czech, French, Italian, Spanish and Greek - Manufacturer specific Enhanced Diagnostics are available for certain vehicles through In-App purchases. ** Continued use of GPS running in the background can dramatically decrease battery life. OBD Fusion is brought to you by OCTech, LLC, the makers of TouchScan and OBDwiz. OBD Fusion is a trademark of OCTech, LLC registered in the U.S.



  • Wiped all my dashboards

    By Sharky's Dad
    I used to like this app. I spent countless hours building the perfect dashboards and then hey presto, without any warning or changes, everything was reset to default. Incredibly frustrating. Now I’m uncertain whether to spend yet more hours recreating my work if this app is going to randomly wipe everything.
  • Junk

    By this is unacceptable.
    Bought this about a year ago and it worked OK, paid for the upgrade information on my vehicle, now there is no support for this device… it won’t update, it’s still the basic features, but there are no advanced features that I paid for available now, this company as a joke, and they ripped me off
  • Does not work

    By the_chosen_one@0936
    I was told to download this app for my iPhone and it does not connect to my obd2 scanner at all
  • Used it on 2008 beetle to read temp and other info on the dash

    By ***DUDE***
    So far. Very nice.

    By Mazda Mike412
    I absolutely love this app and saw that they recently released a firmware update for my car “2024 Mazda 3 2.5t “ Would be awesome if they could make the CarPlay PIDS more customizable 😉
  • Obd

    By Mark 11345679964433
    Had this app for almost 8 years it always has worked good. Then recently, I had a little bug issue, but it was resolved quickly and now the app is back to working good again.
  • Can’t read Mach-E data

    By reddit justlikeapenguin
    Please allow it to read Mach-E battery data. They show blank
  • Disappointed in CarPlay support

    By Savvy Engineer
    This review applies only to the CarPlay support in the App. While I was pleased to find the integration, I am disappointed in what can be displayed. I was hoping to see a dashboard presentation, like in the App, on CarPlay. At time of writing (28 Mar 2024) I can only see a few PIDs and cannot seem to add or change anything other than the basics of economy, engine temperature, RPM, and speed — all of which I get from the dash display of the cars I presently driver. If other PIDs can be added - such as fuel trim, manifold pressure, or ignition timing, the method to do so is not known to me. Regarding the general functionality - 5 stars. I purchased the add-in for Toyota. It provides me capability to read all the computer codes and monitor live data. Been using it for years. On one of my cars, which has an aftermarket supercharger, it is the only instrument that allows me to see the boost level (as the SC kit did not include any installable boost gauges).
  • In depth features

    By Benj N
    Thoroughly impressed with what this can do, I purchased the Enhanced Diagnostics for my specific vehicle and it covers everything I needed to monitor. Really impressed with this app!
  • my favorite part

    By jose shop
    the report of my vehicle