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 3,651 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



  • 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
  • Static IP address

    By Doug526
    Does not work without screwing up the Wifi settings on your device! Why oh WHY do you have to manually set your wifi IP address for this to work??? Can’t you build in the logic to auto detect what the IP of the adapter is? It assigned my phone a DHCP address, but you can’t extrapolate that info automatically ??? Too many extra steps that should not be necessary!!
  • 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!!!😁😁
  • My search has ended

    By AK10R
    Just downloaded the app and connected to the WiFi reader in my Toyota Sequoia. The vehicle had several codes... all were read and cleared. I’ve been doing a bunch of searches, reading reviews and comparing prices. This app works and the price is more than fair. It is easy to use and there was a good YouTube vid on how to use. I am happy with my purchase.
  • Will charge without appproval

    By Andy19584321
    I purchased this app to test my vehicle. I went to use the app again to follow up on error codes and Apple charges me another $10 without my password approval. Not happy about this!
  • Oil temperature doesn’t work

    By oppaidesu
    That’s the main reason I bought the dongle and the app. Everything else works but that sensor for me...
  • Best OBDII Diagnostic app out there

    By troySalty
    This app is quick and thorough. It’s got all the information you could need on your car and its diagnostics. Please add CarPlay compatibility! How awesome would it be to see the gauges on the infotainment screen (like new VW’s/Audi’s)?!
  • Not bad

    By jeep mech
    Works fine would like to have the ability to add more instruments Would like to add oil pressure gauge