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Screenshots

  • OBD Fusion (Car Diagnostics) screenshot 1
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  • OBD Fusion (Car Diagnostics) screenshot 8

About OBD Fusion (Car Diagnostics)

OBD Fusion (formerly TouchScan) 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:

• Read and clear diagnostic trouble codes and your Check Engine Light (MIL/CEL)
• Real-time dashboard display with heads up display (HUD) option
• 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 Ford and GM vehicles including engine misfires, transmission temp, and oil temp.
• Multiple trip meters for tracking fuel economy, fuel usage, 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 150 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)
• GPS tracking - plot vehicle parameters on a map in real-time
• 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**, Automatic Adapter Gen 2 and Pro***, and Wi-Fi**** scan tool support

* Your Android device must have Bluetooth LE support and be running Android 4.3 or newer.
** You must have a tablet with USB host support to connect using a USB device. Only FTDI USB devices are supported.
*** OBD Fusion with the Automatic adapter is currently limited to reading SAE PID data only.
**** Your Android device must support ad-hoc Wi-Fi connections to use a Wi-Fi adapter.

What’s new

Version 7.4.0 · Updated July 20, 2026

- Added enhanced diagnostics for 2026 Ford vehicles. Use the vehicle editor to check support for your vehicle. - Added some additional Manufacturer PIDs for GM vehicles. - Made improvements to the Trip Statistics page. - Multiple bug fixes and improvements.

User reviews

Leo Lima
Leo Lima
This app is amazing! It worked out of the box with my cheap ELM 327 bluetooth device I paid 15 bucks for, plus 5 bucks for the app and 11 bucks for the enhanced package for Toyota. For little over 30 bucks I have complete live diagnostic data for my car. ABS, transmission, engine.. you named it. No subscription requ...
Quincy's Auto Service & Repair
Quincy's Auto Service & Repair
Best scanner and diagnostic tool ever. SUPER HELPFUL. super easy to use.
Kata Schmidt
Kata Schmidt
Pulls and clears codes. Has many diagnostic tools, tests and pulls information that normally requires a very expensive scanner.
Tom Tran
Tom Tran
Worth the money
Yankee Doodle
Yankee Doodle
This is a great app. Paid for the enhanced metrics, and they work like a charm. I bought a hybrid vehicle and this shows me all kinds of data flawlessly. I even used it to fix my O2 sensor on my old car. Very good app.
Bill Raines
Bill Raines
Outstanding device

Frequently asked questions

What is OBD Fusion?
OBD Fusion is an app that allows you to read OBD2 vehicle data directly from your Android phone or tablet. It can clear your check engine light, read diagnostic trouble codes, estimate fuel economy, and more.
What features does OBD Fusion have?
OBD Fusion has features such as 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.
Can OBD Fusion monitor fuel economy and usage?
Yes, OBD Fusion can monitor fuel economy and usage in your vehicle.
How can I know if my vehicle is compatible with OBD Fusion?
You can check if your vehicle is OBD-2, EOBD, or JOBD compliant by visiting the following page: [insert link]. OBD Fusion works with some JOBD compliant vehicles, but may require modifications to the connection settings in the app. Please contact us for more information.
Do I need a specific scan tool to use OBD Fusion?
Yes, you need a compatible scan tool to use OBD Fusion. For recommended scan tools, please visit our website.
Can I use cheap ELM clone adapters with OBD Fusion?
While OBD Fusion can connect to any ELM 327 compatible adapter, we recommend avoiding cheap clone adapters as they can have slow refresh rates and may disconnect randomly.
Who developed OBD Fusion?
OBD Fusion for Android is developed by OCTech, LLC, the developers of TouchScan and OBDwiz for Windows and OBDLink for Android.
What units of measurement does OBD Fusion support?
OBD Fusion supports English, Imperial, and Metric units, which are fully customizable.
How many supported PIDs does OBD Fusion have?
OBD Fusion supports over 150 PIDs.
What types of scan tool support does OBD Fusion offer?
OBD Fusion supports Bluetooth, Bluetooth LE, USB, Automatic Adapter Gen 2 and Pro, and Wi-Fi scan tool support. The specific requirements for each type of connection are mentioned in the text.

Alternatives to OBD Fusion (Car Diagnostics)

Looking for apps like OBD Fusion (Car Diagnostics)? Here are 6 similar Android apps on Google Play. The highest rated is Car Scanner ELM OBD2 (4.7/5), and all 6 are free to download.

OBD Fusion (Car Diagnostics) vs. alternatives
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OBD Fusion (Car Diagnostics) 4.6 / 5 $5.99 100,000+ Jul 20, 2026
MUCAR 3.7 / 5 Free 100,000+ Mar 9, 2026 Compare
Car Scanner ELM OBD2 4.7 / 5 Free 10,000,000+ Jul 20, 2026 Compare
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Infocar - OBD2 ELM Diagnostic 3.9 / 5 Free 10,000,000+ Sep 6, 2026 Compare
EOBD Facile: OBD 2 Car Scanner 4.6 / 5 Free 10,000,000+ Aug 20, 2026 Compare

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