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OBD Fusion (Car Diagnostics) icon

OBD Fusion (Car Diagnostics) — Diagnose your car with this handy app

Android Communication OCTech, LLC
4.6 GP
100,199+
Google Play

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Description

Been using OBD Fusion (Car Diagnostics) for a couple months now. It’s basically an app that lets you read all the data from your car’s computer directly on your Android phone or tablet. Pretty solid if you’re into cars and want to keep an eye on what’s going on under the hood.

Here’s what you do: you can check engine codes, clear the check engine light, monitor fuel economy, and even run emissions tests. And there’s also a ton of customizable gauges – it’s got everything from RPMs to coolant temp. Took me a while to figure out all the features but it’s pretty useful once you get the hang of it.

Look, if you’re into cars and like geeking out over data, you’ll probably like this. It’s not perfect – the UI can be a bit clunky at times – but overall it does the job. Worth checking out if you want a deeper look at what’s happening with your vehicle.

Editor Opinion

So here's my honest take on OBD Fusion (Car Diagnostics). I've tested a bunch of car diagnostic apps and this one's pretty solid. The amount of data and customization is really impressive - you can dive super deep if you're into that kind of thing. But it can also be overwhelming at first. The interface isn't the most intuitive, so it takes a bit of time to learn. Not a dealbreaker, but something to keep in mind. Overall though, it's a great app if you want to stay on top of your car's health and performance.

Manya Lyalya
Author Manya Lyalya Editor, Grand Screen

Pros & Cons

Pros

  • Tons of data and customization for car nerds
  • Helps diagnose issues and clear check engine lights
  • Free to use with optional in-app purchases
  • Works with tons of car makes and models
  • Nice looking gauges and graphs

Cons

  • Interface can be a bit clunky and confusing at first
  • Some features require in-app purchases to unlock
  • Drains your phone's battery if you use it a lot
  • Occasionally runs into connectivity issues

Specifications

Updated 12.09.2025
Category Communication
Age Rating Everyone
Developer OCTech, LLC
Android Android 6.0++
Package Name OCTech.Mobile.Applications.TouchScan

Ratings

92
Google Play
4.6/5
2,704 reviews
Generally Favorable
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User Reviews

David E Oct 9, 2025

App works very well, though there are a few quirks. 80% of the time connection is super quick. The other 20% I have to retry 3-8 times. I would love...

Frankie Holland Oct 9, 2025

I am using this with the Kobra OBD2 Android Bluetooth device. This Fusion app will not connect to it. I've gotten free apps to work but of course when I...

perry farmer Oct 9, 2025

Works well when it connects to a paired adapter. Problem is getting it to connect. Elm 237 Not sure but may be related to having internet access. Once I drive...

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