OBD Fusion

OBD Fusion

By OCTech, LLC

  • Category: Travel
  • Release Date: 2013-06-02
  • Current Version: 4.7.0
  • Adult Rating: 4+
  • File Size: 77.85 MB
  • Developer: OCTech, LLC
  • Compatibility: Requires iOS 9.0 or later.
Score: 4.5
From 3,969 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 customized dashboards, read diagnostic trouble codes, estimate fuel economy, and much more! OBD Fusion is also available for Apple Watch! 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 scan tool, Automatic car adapter (Pro or 2nd generation), Carista BLE adapter, Tonwon BLE adapter, Veepeak BLE 4.0 adapter, LELink BLE adapter, Viecar BLE adapter, Lonauto adapter, Vinli adapter, Vgate iCar Bluetooth 4.0, BAST BLE adapter, or Kiwi 3 to use this app. OBD Fusion is not compatible with generic ELM Bluetooth scan tools and 1st generation Automatic car adapters. Checkout the full list of adapters here: https://www.obdsoftware.net/software/obdfusion OBD Fusion supports all OBD2 and EOBD vehicles sold worldwide. Not sure if 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 through advanced configuration in the app. Please contact us for more details. OBD Fusion is brought to you by OCTech, LLC, the makers of TouchScan and OBDwiz. Now you can get the same great features for your iPhone, iPod Touch or iPad! OBD Fusion has a ton of features, including: 
- Read and clear diagnostic trouble codes and your Check Engine Light (MIL)
- Real-time dashboard display with fully customizable gauges - 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 emailed - Real-time graphing of multiple signals 
- Multiple trip meters
 - Log data to CSV file and email CSV files - Create custom enhanced PIDs - Includes some built-in enhanced PIDs for Ford and GM vehicles - Display Boost pressure in real-time - Display Engine Horsepower and Torque - Display calculated Air-to-fuel ratio - Display battery voltage
 - Read freeze frame data
 - Fully customizable units, including English, Imperial, and Metric units
 - Real-time graphing - Over 150 supported PIDs
 - Displays 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 in real-time - Integrated Dropbox functionality - Available in English, Czech, French, Italian, Spanish and Greek - Manufacturer specific Enhanced Diagnostics are available for certain vehicles through In-App purchases. * Some features may be limited based on the adapter that you are using. OBD Fusion with the Automatic adapter is currently limited to reading SAE PID data only. OBD Fusion with the Vinli adapter is currently limited to reading SAE PID data and trouble codes only. ** Continued use of GPS running in the background can dramatically decrease battery life. OBD Fusion for Apple Watch includes the following features: - View statistics about your last trip - View quick information about your vehicle - See where you parked your car on the map - Set parking meter time on your watch and easily check the time remaining on the parking meter



  • Static IP address

    By Doug526
    there is allegedly some work required in order to get this to work in terms of setting a static IP address in your network settings on your iPhone. according to the developer response I received, the DHCP assigns a gateway address which makes the Internet not work, but by setting IP manually, it negates the need. Ok, sure.
  • Customer service is amazing

    By Pyrotech1620
    Written 8/14/18: So there customer service is amazing. I bought an OBD2 reader and it would not connect. I emailed support and they respond quickly and gave me several things to try. We determined I got a bad device and returned it. They also recommended a brand I should get. I got the new device and it connected immediately and works great. As for the app. It is pretty nice to use but would recommend 2 things that would make it amazing. 1. Allow the user to move the order of the main screen tiles (not sure how many people change their settings once its setup). I would really like to put settings one the second page and move performance to the first page 2. Could be me but did not see where previous 0-60 times are kept. I see 1/4 mile results but thats it. Would be nice to see previous 1/4 mile and 0-60 time and date stamped. This would allow people to check times before and after a mod to the car was done.
  • Beginner app not worth $

    By Kali_Mihai
    The app is for beginners does not let you view live data in voltage for 02 sensors mass airflow sensor is none of the sensors critical to the car.
  • Not so hot

    By N1ckn3me
    I’m still trying to figure out how to save a diagnostic report to a file or in other words share the diagnostic data. Can someone clue me in on that? Getting it connected was not too bad, though. But my biggest complaint is that I can’t send the report to my mechanic via text or email. It just seems to disappear. If I’m wrong about this and it turns out to be easy I stand corrected. I’ll keep trying to figure it out.
  • Needs some instructions

    By Wwy059
    It’s better than most other apps but it’s difficult to build a dashboard. It could be made so much easier. They charge another ten dollars to extend services for each vehicle.
  • major DIY'r

    By a BMW guy
    Unbelievably great app, let alone for free! Any single of the multiple tools included in this application are really cool. I would say overall this app is a better data logger, data monitor and gauge/indicator package then it is a diagnostic tool. As far as BMW diagnostics are concerned, it only gives you the generic errors with none of the proprietary insights that you get from BMW dealership level tools. But for 90% of the users it perfect. The performance screen is also really cool as well. I highly recommend taking advantage of the app's dropbox link so that you can download all the data at this application generates onto your PC for both current and historical analysis. Well done, and thanks a lot!
  • Does not work

    By Epling12
    Tried many times to follow all instructions to connect to my scanner which connects easily to my iPhone 11.4. I cannot connect to this app. It times out tried changing setting still no connection.
  • Delay

    By Emettp01
    There is a delay in my Nissan Sentra 99 of 3 to 6 seconds reading rpm and other sensors. Thank you
  • App is garbage

    By KPres419
    Thanks for the great update. Now the app is completely garbage. Won't connect at all. Worked perfectly before last update. $20 down the drain
  • The best app!

    By Guelo72
    Its an EXCECENT tool!!!😁😁