OBD Fusion

OBD Fusion

  • Category: Travel
  • Release Date: 2013-06-02
  • Current Version: 5.5.0
  • Adult Rating: 4+
  • File Size: 96.01 MB
  • Developer: OCTech, LLC
  • Compatibility: Requires iOS 9.0 or later.
  • Rating Count: 7 980


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, OBDLink MX+, 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, Kiwi 3, or Automatic car adapter (Pro or 2nd generation) 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



  • No Tahoe Extended Diagnostics

    By The Donald 2016
    My 1998 Chevy Tahoe doesn’t show up and there are no Extended Diagnostic for GM.
  • Nice OBD Reader app!

    By NCosta0088
    After trying other apps and being unsuccessful (read, forced to pay for add on to read EACH car), I gave this app a shot. Connected to my veepeak and loaded all info for my car (year, make, model, vin, etc). Best part? I could scan my car WITHOUT paying for an add on! Perfect if you want to see why you have a check engine light, but definitely not a replacement for an OBD II scanner. Worked with both my veepack Bluetooth OBDII adapter and forseal WiFi OBDII - although I recommend the veepack for ease of use.
  • Best iPhone obd app but needs CarPlay support!

    By Paullikesworkingapps
    This app is amazing. I use it to monitor my 2004 Pontiac Grand Prix gtp. Would be 5 stars but due to it being a WiFi connection I can’t stream music off my phone to my deck at the same time as using the app 😭 CarPlay support needs to be added and some fix for the WiFi.
  • Easy to customize

    By OlyTodd
    One thing that I really like about this app is the ability to create and customize individual gauges.
  • Nope

    By geffhjkk
    Basic parameters. Want more? Spend another $10. Stupid. Only gave 2 stars cause it wont let me give 1 or zero. Go figure.
  • Nothing for dodge trucks

    By die frsj
    Pretty cool but nothing for us Mopar folks only bare bone stuff
  • Reconnection

    By most uninteresting man itw
    When it works it does very well. It may be something I’m doing wrong but it will reconnect anywhere from 20 sec. to 1 min. Makes it very frustrating when you are trying to diagnose a problem that only happens when the driving vehicle.
  • Why pay twice?

    By Joshua Christopher Longo the first
    Just used this app today, per the manufactures specs of my reader they recommend using this app. I was under the impression that I paid the 10 bucks and I would be good to go and be able to read all of my vehicle(s) usage. Well I was wrong. You pay the $10 to download the app just to be told you have to pay another $10 per vehicle. So if I wanted to read my wife’s car, my car, and truck. I would be all in with $40. I can understand paying a few bucks per vehicle, but let’s be real. The $10 upfront cost is not necessary to download the app. This type of app should be free and then pay for the in app purchases. This is why I gave the 1 star. The plus side is I am able to view every sensor once I pay the $10 per vehicle and see the vehicles codes. I would recommend to the app developers to make the app free, then have the consumer pay the $10. Very misleading.
  • Works well, except for...

    By Gerald Reding
    ...the fact that it won’t give me accurate fuel economy readings. In fact, it’s wildly off for my 2006 Duramax. I have readings of 99 mpg average and 150-300 mpg instant fuel economy.
  • OBD Fusion is easy to use and effective

    By Viper Gurl
    I downloaded and used the OBD Fusion with the Foseal WiFi scan tool with no problems. After getting a check engine light warning on my car and looking up the code given to me via my car diagnostics, I fixed the problem myself but the check engine light stayed on. I used OBD Fusion to verify the error code and easily cleared it afterwards. My check engine light did not return, which meant that I fixed the problem on my own without taking my car in for a maintenance service. The app is so straightforward to use and easy to understand that a non-gearhead car chick like me was able to do a basic fix on my car without any additional help. I highly recommend this app.
  • doesn’t work

    By dchrdchy
    not working with blue driver. you have to purchase extras to make it of any use, but it doesn’t work anyway
  • Possibly caused my car to stall

    By JoeCool Hiker
    I used this app and an OBD reader for the first time. It seemed good. After using it, I drove the vehicle without the OBD reader plugged in and the car stalled as the vehicle was moving several times. The car started right back up though. This is the first one this has ever happened to me. I don’t know if it was the dongle or this app that might have messed with my ECU computer. Not going to be using it again though. Having the car completely die as you’re moving in traffic with no power steering is not fun.
  • Saved a lot of money and time

    By OldSchoolTechie
    I was able to diagnose and repair a misaligned cam phaser on our 2012 Infiniti G37 thanks to the vehicle specific add-on support module, which displays the current cam phaser angle. What would have been about a $3000 repair, I was able to fix myself for less than $500. Dropping one star because I wish this app supported more vehicles (Mercedes-Benz for example), so that I could use it on my entire collection.
  • Works Great

    By Chasedoggy
    I have an older car with a bunch of miles on it and I use the app to understand what I need to do to keep my car healthy. I bought a new car and it has already helped me understand what is gong on with it. I highly recommend this app to anyone who wants to know what is going on under the hood.
  • EZ set up

    By CooFeet
    Easy to set up and use. One trip to a mechanic for scanning trouble codes cost 10x more than this software.
  • Works good but missing PIDs

    By Rubberman10
    Good app but i dont see a transmission temp , battery voltage gauges. Like to see a graph to view misfires
  • Legit

    By Mr. Resto
    My life saver!
  • Can’t adjust displays

    By login hell
    At first you can edit the displays but as you add more the ability to edit is lost. Sometimes issues with the communication with Bluetooth. Confusing name other apps have similar names. Keep working on it
  • JD8833

    By JD8833
  • Great app

    By white thunder 6 oh
    Used with six oh powerstroke to monitor vital parameters. Easy of use and ability to setup easy to read gauges are a plus!
  • I recommend it

    By schyall
  • Great product

    By Kstriper
    Works very well, I always use it to check for any issues and use it to check cars before I take them in for a smog check. Occasionally, a slow connection. Thanks.
  • Doesn’t connect

    By Seamuskrat
    The software interface looks nice. Problem is it doesn’t actually connect to any device. I’ve tried three different OBD all of which list compatibility. My friend has a different app that works great with all three. I had hoped this would be simple and easy. It isn’t.
  • Amazing App for Scan Tool

    By Jus' Groovin'
    I purchased the Veepeak OBDCheck BLE OBD2 Bluetooth Scanner and this app plus its add-on for my vehicle family. This app recommended the Veepeak scanner. Its site recommended this app. It sounded like the perfect combination for an app-based scan tool, so I got them both. I couldn't be more pleased! The scan tool, I think, is very good. It gathers the complete OBDII required data and, it appears, any extensions the vendor adds. This app is infinitely configurable. It appears to be able to collect the full OBDII set and any and all vendor extensions. However, they may require the purchase of add-ons within the app. There are two screens of "instruments" that come with the app. You can add more screens and instruments and fully customize them to display data the way you want to see it until you go blind. Looking into the settings, I can't imagine there's anything missed. I'll also add another plug for this scanner/software pair. I believe the Veepeak is the only one for iOS that doesn't connect using Wi-Fi. It connects via Bluetooth LE. Also, you don't pair it. OBDFusion connects with it directly. This makes setup very easy and, more important, it leaves your Wi-Fi, cellular data and Bluetooth untouched and available! Very nice.
  • Doesn’t pick up all errors

    By Crazy Dame
    Tested with vgate icar pro 4 adapter on 2008 Mercedes ML 350 and 2010 Nissan Pathfinder with known errors, also with the light lit on the dash indicating car issues, and both showed no errors, but did show errors on 2004 Jeep, 2017 Chevy Traverse, and 2012 Honda Civic so obviously not an adapter issue, and has to be an app issue.
  • O2 sensor T/S

    By Ford exploder
    The program does more than most OBD scanners do except for the expensive one For one I was able to trouble shoot an O2 sensor that was not reading correctly by watching the voltage live. That alone was well worth the price of the program
  • Best ODBII

    By LanPhantom
    Great app. Two wishes: 1. Enable user to select digits temp gauge. Numbers on analog temp gauge are very hard to read. 2. Add advanced in app purchase for BMW/MINI diagnostics and stuff. Would like to see battery re-initialize, transmission reset, re-initialize window module, etc. would pay handsomely for that.
  • It’s a good app to read your codes

    By gti ty
    Bought this to use as a boost gauge doesn’t read accurate says I’m getting 25psi when my car is tuned to run at 14psi wasted my money but at least I have a code scanner 😂😂
  • Nice

    By E404rb
    Between kiwi and this app, the combination works well . 2003 Subaru Outback. Easy connect. Reset engine light quickly. Just getting used to all the app features, I like the logs, and dashboard.
  • Meh

    By Blues Blues Blues
    Honda seems to be only partially supported.
  • Jeep

    By Twoodman66
    No available upgrades for Jeep. In reply. Then you should list which vehicles are supported and which are not. That would be the honest thing to do.
  • Very happy with this app

    By deeple
    I am happy with this app. I use it with a Bluetooth dongle. Works great.
  • Great App, Great Support

    By Alex UlrichWahl
    Great App, has some issues with connectivity but Matt helped me isolate the issues to the adapter I was using. Very knowledgeable and the app works so smooth!
  • Love the app

    By jeep mech
    Works fine would like to have the ability to add more instruments Would like to add oil pressure gauge 2002 Jeep
  • Update fixed and works great

    By Patriot Jon
    Thanks for the quick response and quick bug fix to the latest update. The app works great! 5 stars.
  • Outstanding

    By Darkomotorsports
    Friends of mine have used competitors apps.... some of them are hard to use ...and this one is flawless. Has saved me a ton of money. Well worth what I paid.
  • Amazing

    By igores turbo
    Can’t believe how good this app works with a cheap $16 Veepeak WiFi. No lag even with 8 gauges running at the same time. I’m using it on my iPhone 8 Plus turned sideways. The assortment of pid’s is good but I wish they sold more for Honda Turbo like they do for other brands.
  • No fuel pressure reading

    By Sfv144
    So, this app does not measure fuel pressure? I sure wouldn’t have bought it if I had known that. Torque does, but I don’t have an Android device. BS.
  • Customizable, Easy, Amazing!!

    By Flame on!
    Not only is this app completely and FULLY customizable, it’s also easy to use! If you want basic gauges with your cars data use defaults provided, if you want to customize your live data gauges to your own style you can, even down to adjusting the color, size, depth, of a needle on a dial. Choose the right OBD2 reader and this app will be your best friend. I was able to see I had a vacuum leak based upon some readings. Thank you for a great app!! For reference I’m using a Kobra wireless obd2 reader, and I have a 2003 Subaru Impreza 2.5TS, works great!
  • working great

    By RJ Med Inc.
    Works great with my elm327.
  • Must-have for the DIYer

    By 凹 (^o^) 凹
    This app saved me hundreds of dollars in shop labor. Purchasing the expansion pack for my car, I was able to connect the ELM327 dongle to various ECUs and download/clear trouble codes that my other code reader couldn’t access. Definitely worth the price, and a critically important troubleshooting tool for the modern mechanic.
  • Can’t get Engine oil temp gauge to work

    By champ71
    Hello I just received my Foseal OBDII blue tooth system and purchased your Software app and I also purchased your advanced add on feature. I have a 2005 Ford superduty with a 6.0 Diesel and am trying to view Engine oil temp. I now have the option to select the EOT gauge but the gauge doesn’t work. Do I have to add an equation or do something more to get it to work? Coolant temp gauge works fine. But not EOT gauge.
  • Money Saver

    By BDHawkeye13
    Best app I’ve ever spent money on. I have newer vehicles and the cost of simple repair jobs at a dealership are nuts. Being able to pull a few codes and narrow down an issue to a single part is awesome. I’ve saved hundreds in the last year alone. O2 sensors, wheel speed sensors...you name it. Saved me a ton. I’ve also become everybody’s buddy when they throw a check engine light. Spend $40 on a decent dongle, and $10 on a advanced vehicle pack and your set. Just perfect app.
  • Not reliable

    By F3502016
    Have used app twice. Using a veepak adapter. Both times app had pulled in all settings (193 pids). Lost communication while driving and only 14 pids comeback. Tried resetting. Still only 14 pids. Paid extra for the enhanced but those do not have what I need for my diesel. Want a solution or want a refund.
  • BLE doesn’t work

    By Kyreeth
    I have a LElink BTLE OBD2 adapter, and while LeafSpy can talk to the car just fine, this app straight up fails to work. Tried two different adapters, it just won’t speak to the CAN.
  • This app is great!

    By BIgfoothd
    This is the first time I’ve ever voluntarily left a review. I have four free OBDII apps in my iPhone. They all sucked. I didn’t want to pay for an app but after reading at least a dozen reviews on this app and not finding one bad review I decided to buy it. Couldn’t be happier ! This app is excellent! It’s everything in I wanted to diagnose my truck. I like it so much I deleted all the other crappy apps in my phone. I gave it 5 stars and highly recommend this app to anyone who works on their own vehicles. Happy in Colorado! ( and not because of pot😂 )
  • Ford IAP for $10 soured the vibe

    By Luskmonster
    I think it’s a great app. The best I’ve yet used for iPhone OBD2. Let me tell you though, paying for the Ford add-on at the same price as the rest of the app, I am overwhelmed by a tragic decrease in perceived value. As in the add-on w’ernt worth doubling the cash I’m in for. Pee-ew, that stink is a rotten smell. Otherwise it’s aight, most OBD2 are weak af so it’s a easy fight to win.
  • Great app

    By bosley15
    Works perfect with my old Chevy truck and was able to get trans temp added as well.
  • needs update

    By richv25
    wish it would really use your bluetooth to diagnose ur car and even support the bluetooth cause says it can’t be found can only see on wifi thats it