Car Scanner OBD2 ELM: Obd Mary

Content rating
Everyone
Digital Purchases
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The arrival of Car Scanner OBD2 ELM: Obd Mary by WyspaTech brings a fresh breeze to the AGCscript ecosystem. This digital platform is worth installing. Check more in Auto & Vehicles.

Quick Guide To Download Car Scanner OBD2 ELM: Obd Mary

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.
Effectiv OBD2 Car diagnostics. DTC Scanner. Custom Dashboard. ELM Trip Computer.
Updated on
Aug 20, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Personal info and 4 others
  • This app may collect these data types
    Location, Personal info and 4 others
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

142K reviews
Raymond Lulling
October 28, 2025
I've been using the free limited version of this program for a while now. I've tried a couple different programs that are compatible with the transmitter I have plugged in. and while the others might have been better programs they had way more stuff locked down and it was harder to really evaluate whether or not they were worth the money they were asking. I'd say the big claim to fame with this program is its simplicity and straightforwardness. And the cost to unlock really is trivial.
17 people found this review helpful
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Del Brooks
May 31, 2026
Good app for testing an OBD2 device and beginning to troubleshoot a problem. Most apps would let me connect but not clear a code without paying. This one gives 9 free connections before buying the app. I've only used 2 connections so far and haven't paid yet. However, it connected to my phone and the device, allowed me to clear codes, and see issues. That's better than most apps that I've tried.
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Jon Musselwhite (Flipping Binary)
October 24, 2022
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.
39 people found this review helpful
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What’s new

Added more default gauges on dashboard
Added more OBD-2 parameters
Fixed some bugs