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OBD Fusion app review: keeping your vehicle healthy with diagnostic scan tools-2021



OBD Fusion app is a full-featured vehicle scan and diagnostic tool that can help monitor engine health, fuel efficiency, and engine trouble. It acts as an on-board display reader with impressive visual graphs and custom gauges.

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The app works with OBD2 and EOBD compliant vehicles. It requires Wifi-capable ELM scan tool to allow the app to communicate with the car engine. Developed by OCTech LLC, this app is compatible with iPhone, iPad, and iPod touch and acts as an OBD reader, OBD2 gauge and more. 

Continue reading our OBD app review to learn more about this app and check out our best auto apps list for more great options. 

OBD Fusion


A Vehicle OBD Reader in Your iOS Device

If you want to make sure that your vehicle is always in tip-top shape, then you have to know what’s going on under the hood. Fortunately for most car owners, vehicles these days are getting smarter. They are now equipped with state of the art engines and parts that can communicate directly with external electronic scanners and diagnostic tools.

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And the good news is that you can now use specialized applications to transform your iOS device into an OBD reader. 

OBD2 gauge application 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, also obd fusion app can set parking meter time on your watch and easily check the time remaining on the parking meter.

One of the most impressive vehicle diagnostic tools in the App Store is OBD Fusion. This app allows your smartphone or tablet to display the diagnostic data of your vehicle. So instead of buying expensive on-board display hardware, just install OBD Fusion in your device and access vital engine information with a few taps.

OBD Fusion works with the latest car models that support OBD2 and EOBD. Before you install the app, make sure that your vehicle can meet this requirement. Additionally, this is not a standalone app because it requires separate hardware that allows your iOS device to communicate with the vehicle.

To prevent compatibility problems, you can use OBD Fusion’s knowledge database to know more about OBD compliance and hardware requirements. 

A Vehicle OBD Reader in Your iOS Device  image

Best Features of OBD Fusion

OBD Fusion offers three vital features: the engine scan tool and diagnostics, fuel efficiency monitor, and engine trouble monitor.  

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The engine scan and diagnostic tool is the core feature of the app. It offers real-time graphs and gauges for monitoring engine performance. It can log and track RPM, absolute pressure, mass air intake, air flow, engine temperature, and battery level.  It supports more than 90 performance indicators and offers key vehicle information like VIN and calibration ID.

The fuel efficiency monitor is one of the best features of OBD Fusion. It allows you to view the current MPG rating of your vehicle and provides readings for actual fuel consumption. With this feature, you will be able to optimize your engine to make it more fuel efficient.

And lastly, OBD Fusion offers real time diagnostic trouble codes so you can clearly understand your engine’s health. The app will give you the exact number of trouble codes found in your vehicle. 

Best Features of OBD Fusion image

OBD Fusion


Pros and Cons


  • Offers impressive graphical display and custom gauges
  • Offers comprehensive engine diagnostic report
  • With fuel efficiency monitor
  • Checks your vehicle for emission compliance
  • Records and logs data for email and CSV download
  • With GPS tracking
  • Offers multi-language support


  • Multi-gauge display could confuse novice drivers
  • Does not support Bluetooth connectivity

Pros and Cons image

Final Words

OBD Fusion is one of the most feature-packed car diagnostic apps in the App Store. It offers comprehensive scanning and diagnostic tools to keep your engine at optimum levels. This is a good app for seasoned drivers and mechanics.

OBD Fusion

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Cherry is a hard-working writer and an aspiring web designer who can't go a day without using her favorite apps. She's always on the lookout for new apps and enjoys discovering ones that others have overlooked.