OBD Fusion (Car Diagnostics) icon
android

OBD Fusion (Car Diagnostics)

Read OBD2 data and DTCsCreate custom dashboardsEnhanced diagnostics available

by OCTech, LLC

4.6(3.2K)
Downloads
<3k

Last 30 days

Revenue

Last 30 days

Rev/Download

Avg per download

Rating
4.6

3.2K reviews

Performance Insights

Competition level

Low competition

Under 100K on both downloads and revenue — the kind of niche a small team can still take.

Tracked since

14 years

First seen June 2012 · 109 releases since

App Summary

OBD Fusion (Car Diagnostics) is an Android app ($5.99) by OCTech, LLC in the mobile app category. It draws an estimated 1K downloads a month and holds a 4.6-star rating.

  • A paid app priced at $5.99.
  • Ships new versions about one a month.
  • Latest version is 7.4.0, released July 20, 2026.
  • 76% of ratings are five-star.
  • Strongest in US, DE, MX.
  • Requires Android 7.0+.
  • Rated Everyone.

App details

Version
7.4.0
Release status
Regional release
Age rating
Everyone
Requires
Android 7.0+
Price
$5.99
First seen
June 2012
Top markets
US, DE, MX
Publisher country
US

Release history

109 versions tracked

  1. Version 7.4.0Latest
  2. Version 7.3.0
  3. Version 7.2.0
  4. Version 7.1.1
  5. Version 6.14.0
  6. Version 6.13.0

Ships about one a month.

What users say

5
76%
4
16%
3
3%
2
3%
1
3%
  • 2.0

    Great app but unless I'm missing something there is no option for gauges in Android Auto. That was my only reason for purchasing this app and it turns out it's the same output in Android Auto as the free app without paying. The output is delayed as well so much so that the RPM is back to idle before the increase even registers. I'm using a VEEPEAK adapter too, not one of those cheap ones so that's not the issue. I'm pretty disappointed but hopeful the devs will add gauges.

    Reviewed on version 6.7.0

  • 3.0

    The app is customizable as far as display goes but is lacking in functionality. There is no way to display highs and lows on any of the gauges like coolant temperature, rpm or speed. This app would get 5 stars if it could do that. Also I am unable to hide the standard bottom of the phone android navigation bar that is showing up white color on the bottom of my phone while I have the gauge colors dark. I am using Galaxy S8+

    Reviewed on version 5.38.0

  • 4.0

    Update: I have once again found a fix. I turned off mobile data. I have it connecting 3 out of 3 times. Update: I am once again unable to connect to my wifi OBD2 device. I am still able to connect with different software (Car Scanner), so I don't think it's entirely a hardware issue. Ok, so following the instructions imbedded in a different app (OBD Mary), I found that by disabling battery optimization I could get it to work every time. You may want to include this information in your app.

    Reviewed on version 5.10.0

About OBD Fusion (Car Diagnostics)

3,777 characters

OBD Fusion is an app that allows you to read OBD2 vehicle data directly from your Android phone or tablet. You can clear your check engine light, read diagnostic trouble codes, estimate fuel economy and much more! OBD Fusion has a ton of features that are used by professional car mechanics, do-it-yourselfers, and users who want to monitor car data during day to day driving. Some of the features include customizable dashboards, real-time graphing of vehicle sensors, emission readiness status, data logging and exporting, oxygen sensor tests, Boost readout, and a full diagnostic report.

Is your check engine light on? Do you want to monitor fuel economy and usage in your vehicle? Do you want cool looking gauges on your Android phone or tablet? If so, then OBD Fusion is the app for you!

OBD Fusion is a vehicle diagnostics tool that connects to OBD-II and EOBD vehicles. Not sure if your vehicle is OBD-2, EOBD or JOBD 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 works with some JOBD compliant vehicles and in some cases requires modifications to the connection settings in the app. Please contact us for more information.

You must have a compatible scan tool to use this software. For recommended scan tools, see our website https://www.obdsoftware.net/software/obdfusion. Please note that cheap ELM clone adapters can be unreliable. OBD Fusion can connect to any ELM 327 compatible adapter, but the cheap clone adapters tend to have slow refresh rates and might disconnect randomly.

OBD Fusion for Android is brought to you by OCTech, LLC, the developers of TouchScan and OBDwiz for Windows and OBDLink for Android. Now you can get the same great features for your phone or tablet.

OBD Fusion has the following features:

• Android Auto support. Note that Android Auto does not support dashboard gauges. • Read and clear diagnostic trouble codes and your Check Engine Light (MIL/CEL) • Real-time dashboard display • Real-time graphing • Fuel economy MPG, MPG (UK), l/100km or km/l calculation • Create custom enhanced PIDs • Includes some built-in enhanced PIDs for GM vehicles including engine misfires, transmission temp, and oil temp. • Multiple trip meters for tracking fuel economy, fuel usage, EV energy economy, and distance • Customizable dashboards with fast dashboard switching • Log data to CSV format and export for viewing in any spreadsheet application • Display battery voltage • Display Engine Torque, Engine Power, Turbo Boost pressure, and air-to-fuel (A/F) ratio (vehicle must support the required PIDs) • Read freeze frame data • English, Imperial, and Metric units that are fully customizable • Over 250 supported PIDs • Displays vehicle information including VIN number and calibration ID • Emissions readiness for each US state • Oxygen Sensor Results (Mode $05) • On-board Monitoring Tests (Mode $06) • In-performance Tracking Counters (Mode $09) • Full diagnostic report that can be stored and emailed • Option to select the connected ECU • Built-in database of fault code definitions • Bluetooth, Bluetooth LE*, USB**, and Wi-Fi*** scan tool support • Available in English, Spanish, French, Italian, German, Czech, Greek, Chinese, and Portuguese

* Your Android device must have Bluetooth LE support. ** You must have a tablet with USB host support to connect using a USB device. Only FTDI USB devices are supported. *** Your Android device must support ad-hoc Wi-Fi connections to use a Wi-Fi adapter.

OBD Fusion is a trademark of OCTech, LLC registered in the U.S.

Frequently Asked Questions

OBD Fusion (Car Diagnostics) Android app download estimates are updated daily on Android. The app maintains a 4.6-star rating based on 3.2K user reviews, indicating strong user satisfaction in the mobile app market.

OBD Fusion (Car Diagnostics) Android app competes actively in the mobile app category on Android. The app's performance metrics suggest significant growth potential in a low-competition segment.

You can download OBD Fusion (Car Diagnostics) Android app from the Google Play Store for Android devices, requiring Android 7.0 or later. The app offers in-app purchases for enhanced functionality.

View on Google Play Store