Obd Mary – Car Scanner for ELM
Effectiv OBD2 Car diagnostics. DTC Scanner. Custom Dashboard. ELM Trip Computer.
App info
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App description
Android App Analysis and Review: Obd Mary – Car Scanner for ELM, Developed by OBD Apps. Listed in Auto & vehicles Category. Current Version Is 1.264, Updated On 17/04/2025 . According to users reviews on Google Play: Obd Mary – Car Scanner for ELM. Achieved Over 4 million Installs. Obd Mary – Car Scanner for ELM Currently Has 134 thousand Reviews, Average Rating 4.7 Stars
Obd Mary is a EOBD \ OBD-2 car diagnostic scanner, gauge dashboard and trip computer with a number of cool features.With our OBD2 Car Scanner OBD Mary it is possible not only read and clear OBD-2 Trouble Codes but also make diagnostics for different vehicle ECU like: ABS, SRS, Airbag, HVAC and etc.
Our Car Scanner OBD Mary supports brands like: Acura, Alfa Romeo, Alpina, Audi, BMW, BYD, Buick, Cadillac, Changan, Chery, Chevrolet, Chrysler, Citroen, Dacia, Daewoo, Daihatsu, Daimler, Datsun, Dodge, DS, Exeed, Fiat, Ford, Geely, General Motors, Genesis, GMC, Great Wall, Haval, Holden, Honda, Hummer, Hyundai, Infiniti, ISUZU, JAC, Jaguar, Jeep, JMC, Kia, KTM, Lada, , Lancia, Land Rover, Lexus, Lifan, Lincoln, Lotus, Mahindra, Mazda, McLaren, Mercedes-Benz, Mercury, MG, Mini, Mitsubishi, Nissan, Opel, Peugeot, Pontiac, Porsche, Proton, RAM, Range Rover, Ravon, Renault, Rivian, Rolls-Royce, Rover, Saab, Samsung, Scion, Seat, Skoda, Smart, SsangYong, Subaru, Suzuki, Toyota, Vauxhall, Volkswagen, Volvo
Attention!!!
1. You need ELM327 Bluetooth or Wi-Fi adapter to connect to a vehicle using this application.
2. Your vehicle can contain some ECUs (electronic control modules), so don't forget to check all ECUs.
3. ELM adapters version 2.1 are often can be corrupted, so try to choose version 1.5 if you have a chose.
Quick start guide
1. Download the app
2. Plug in ELM327 adapter into 16-pin diagnostic connector in your vehicle
3. Switch ON ignition
4. Discover your Bluetooth ELM adapter in your Android device settings
5. Select discovered ELM327 adapter in the app settings
6. Try to connect!
Diagnostics
You can read and reset trouble codes from OBD2 compliant control units. Can see fault codes descriptions and search it in internet just by click. Freeze-frame data can be read in case if DTC is activated. You can read live parameters like speed, RPM, MAF, coolant temperature.
Dashboard
Use our OBD2 app as a gauge dashboard. Create your own set of gauges. You can customize approximately all gauge parameters(sizes, colors, positions of stroke, arrow, texts, labels, backgrounds and etc.) Resize and move gauge in edit mode to desired place just using your fingers. Enjoy your style!
Trip computer
Track your trips with our Obd Mary app and ELM327 adapter. Keep the adapter connected all the time inside your car and the app connects to your vehicle and log your trip data:
- trip time;
- fuel consumption;
- fuel cost;
- average speed;
- max speed and etc.
Full version
Buy the full version of the Obd Mary app and get full functionality without an ads. When you are buying the app you support future development and support. Thank you.
The application uses foreground service to have a constant connection with the Wi-Fi or Bluetooth ELM adapter which is used for communication with the modern vehicles when the app is in foregaround or in background state. The app collects data from a vehicle and store it locally to provide user information about average fuel rate, average speed, mileage, trip time and other statistics params even when the app is in a background state.
Contact developer: Fill free to contact us using appropriate button on the main app screen. Use email channel.
We are currently offering version 1.264. This is our latest, most optimized version. It is suitable for many different devices. Free download directly apk from the Google Play Store or other versions we're hosting. Moreover, you can download without registration and no login required.
We have more than 2000+ available devices for Samsung, Xiaomi, Huawei, Oppo, Vivo, Motorola, LG, Google, OnePlus, Sony, Tablet ... with so many options, it’s easy for you to choose games or software that fit your device.
It can come in handy if there are any country restrictions or any restrictions from the side of your device on the Google App Store.
What's New
Improved fuel consumption calculation
Added more OBD-2 parameters
Fixed some bugs
Added more OBD-2 parameters
Fixed some bugs
Recent Comments
Bob Cunningham
There are many good OBD apps available, but OBD Mary is just a bit better than the rest. Better UI, better features, better performance. I especially like how much better the free version is than the free versions of the other OBD apps. You don't "need" to upgrade from the free version, but if you can, you should! My 2012 Mazda is starting to show it's age, and I wanted to more closely monitor its performance and also check the error codes that occasionally pop up then go away.
Bobby S
The app would not connect to the ECU without data... I have two Galaxy j7s, same exact model, so I put this app on the one without data to act as the scanner and it would time out every time... Tried it on the phone with data and it connected right away... What gives? ALSO: It will read the codes but you can only see 1. The others are hidden unless you pay. The free app 'Car Scanner' pulled all mine for free and it's easy to export to text file. Avoid if you are just looking to pull CEL codes.
Jon Musselwhite (Flipping Binary)
My Samsung Galaxy S21 complains about this app "overloading the system" every day when it's not even in use. It'll hit 25% CPU utilization. Maybe it's the periodic report feature that does that. If so, it should do the work incrementally and break it apart into small chunks so it doesn't hit the processor hard like this. I just want a simple app that reads error codes and tracks car activity automatically. Hopefully this will be fixed. Then this would be a five star app.
mk
this app has been instrumental to resolving the error codes that my 03 Infiniti G35 had. the interface is very user friendly, The trouble code scanner is the best I've seen in any app (full version or not), and I didn't expect this app to continue to be so useful, but the trip log feature (thats surprisingly comprehensive, even in the free version) takes the cake. so useful for logging fuel economy/miles traveled for my job that requires lots of driving. Try this app. you wont regret it!!
Enrico de Rojas
Worked for a few weeks and both cars, but now will not connect to either of my vehicles. Sent emails via the App but no response. Plus no way on Google Play to Re-Install, only option is to uninstall. I use the wireless ELM 327 connector. Works fine on buddy;s phone with his Torque App. I paid for the Upgrade, but it keeps telling me to Upgrade and when I clik that option nothing happens. No on-line support, no on-line user manual, suggest you find a better App
Leo Co
Paid for the full version, but the app freezes and disconnects when selecting options. There is no real technical advantage for this application other than to see what is wrong. There is no guidance with correcting the issues or digging deeper to resolve the major problems. It really only tells you what the problem is and that's all.
Larry Gosselin
Using the free version. When I first got this App I could both read diagnostic codes and clear them. With more recent versions I can still read codes but am no longer able to clear them. With the last coupe versions the screens have changed and the screen to clear codes no longer is available . I now get a screen indicating that I need to purchase the full version to get this functionality.
Michael Elkin
Best i could find so far. You need to pair from the app, not Android or it did not work. But then it could connect. The gauges where slow to update, but the add guage screen shows all values and updates much faster. Also, it suggests grouped requests, but i found it to be better with grouped off.