Obd Mary – car scanner and dashboard with ELM327

OBD car scanner apps let you diagnose vehicle issues directly from your smartphone. Obd Mary – car scanner and dashboard with ELM327 is a professional-grade EOBD/OBD-2 diagnostic tool that reads and clears trouble codes, monitors live engine data, and tracks vehicle performance—all through a single intuitive interface.

Diagnose your vehicle like a mechanic. Beyond basic trouble code reading, Obd Mary accesses multiple electronic control modules including ABS, SRS, Airbag, and HVAC systems. View detailed fault code descriptions instantly and search for solutions with a single tap. When diagnostic trouble codes are active, freeze-frame data shows you exactly what conditions triggered the fault. Monitor real-time parameters such as engine speed, vehicle speed, mass airflow, and coolant temperature as they happen. The app supports over 50 car brands—from common manufacturers like Toyota, Honda, and Ford to luxury brands like Mercedes-Benz, BMW, and Porsche—ensuring compatibility with most modern vehicles.

Customize your own gauge dashboard to match your driving style. Create a personalized set of digital gauges displaying any vehicle parameter you want to track. Adjust gauge sizes, colors, arrow positions, text labels, and backgrounds with finger-touch controls. Rearrange your dashboard layout in edit mode to suit your preferences, giving you the vehicle information that matters most at a glance.

Track every journey with built-in trip computer functionality. Keep your ELM327 adapter connected in your vehicle and let Obd Mary automatically log trip data including journey time, fuel consumption, fuel cost, average speed, and maximum speed. Over time, you'll build a detailed record of your vehicle's performance and efficiency patterns, helping you spot maintenance needs before they become expensive problems.

To use Obd Mary, you'll need a compatible ELM327 Bluetooth or Wi-Fi adapter connected to your vehicle's 16-pin diagnostic connector. The app maintains a constant background connection to your adapter, collecting and storing vehicle data locally so you can review statistics anytime. For the best experience, version 1.5 adapters are recommended over version 2.1, which can experience reliability issues.

The free version includes core scanning features with occasional ads. Upgrade to the full version of Obd Mary – car scanner and dashboard with ELM327 to unlock complete functionality ad-free and support ongoing development of new diagnostic features.