# Car Scanner OBD2 ELM: Obd Mary

> Car Diagnostic App

Canonical page: [https://chrome-stats.com/d/id1456542840](https://chrome-stats.com/d/id1456542840)

## Overview

- **ID:** `id1456542840`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Ihar Katkavets
- **Category:** Utilities
- **Rating:** 4.70 / 5 (39 ratings)
- **Version:** 1.8.5
- **Last updated:** 2026-09-01
- **First published:** 2022-08-27
- **Size:** 24 MB
- **Data as of:** 2026-09-04
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/car-scanner-obd2-elm-obd-mary/id1456542840)
- **Website:** [https://obdscanner.net](https://obdscanner.net/)
- **Privacy policy:** [https://sites.google.com/view/car-mate/home](https://sites.google.com/view/car-mate/home)

## Description

Obd Mary is a universal vehicle scanner which works according to OBD2 standard. 
The application works with WiFi and Bluetooth 4.0 LE adapters.

Requirements:
1. You need ELM327 Bluetooth 4.0 LE 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 for  ELM327 adapters:

1. Download the app
2. Plug in ELM327 adapter into 16-pin diagnostic connector in your vehicle
3. Switch ON the ignition
4. Discover your WiFi or Bluetooth ELM adapter in the app settings
5. Select discovered ELM327 adapter and press 'Connect'

You can make scanning and diagnosing using the application Obd Mary and Wi-Fi ELM327/BLE ELM327.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Rankings

- #190,445 — Overall

## Review summary

Users describe Car Mate as beginner-friendly, easy to use, and effective at reading and interpreting OBD codes. They frequently note that it works with many scanners and is free to use, a plus for DIY enthusiasts. Real-time data display is also highlighted. Some reviews report connectivity issues with certain hardware, including timeouts with some Wi‑Fi adapters and, in at least one case, inability to connect to an OBDLink MX+. Overall, it's a solid free option for basic diagnostics and live data, especially for newcomers.

### Pros

- Very user-friendly and easy for beginners.
- Reads and interprets diagnostic codes and clarifies fixes.
- Compatible with many OBD-II scanners.
- Free to use, a strong value compared with paid apps.
- Shows live data in real time.

### Cons

- Connectivity issues with some scanners, including timeouts (e.g., VEEPEAK PRO WiFi).
- Inability to connect with certain devices, such as OBDLink MX+.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1456542840)