Best Diagnostics Code Apps

OBDeleven – OBD2 car scanner

Diagnostics & customization

Free

Transform your smartphone into a powerful car diagnostic and customization tool. Easily scan trouble codes, monitor live data, and access advanced features like coding and service functions for a wide range of car brands. Save time and money on car maintenance and personalization.

OBD2 Code

by Liang-Hung Publishing

Free

This app serves as a reference for standard Diagnostic Trouble Codes (DTCs). It helps users understand fault codes generated by a vehicle's onboard computer, aiding in problem diagnosis.

OHIP Diagnostic Codes

by Ilan Lenga

Free

Access a searchable database of diagnostic codes needed for billing the Ontario Health Insurance Program. Quickly find codes by diagnosis or number, create custom aliases for easier recall, and manage favorite codes for efficient lookups.

BimmerObd - Link Code Reader

Read fault codes & live data

Free

Transform your phone into a car diagnostic tool with a compatible OBD-II adapter. Read trouble codes, view live sensor data, and access an offline library for code explanations. Perform service resets and generate PDF reports for your vehicle's records.

MECH AI Mechanic: Car Repair

Car Diagnostics & Engine Light

Free

This app acts as your personal AI mechanic, offering car diagnostics and repair guidance. Ask questions in plain language, analyze warning lights with photos, and access step-by-step repair instructions. It also includes an OBD2 code reader and a digital service timeline for your vehicle.

EOBD Facile - OBD2 Car Scanner

Torque & ELM327 OBD Diagnostic

Free

Turn your smartphone into a professional OBD2 diagnostic tool. Monitor engine torque, read and clear fault codes, and access real-time vehicle sensor data. Supports a wide range of vehicles and ELM327 adapters.

OBD2 Scanner | OBD Auto Doctor

Car Diagnostics & Check Engine

Free

Transform your iPhone into a car diagnostic tool. Read and clear engine trouble codes, monitor live engine data, and check emissions readiness with a compatible OBD2 dongle.

MechNostic: AI Car Diagnostics

OBD2 Scanner for Mechanics

Free

This AI-powered tool assists professional mechanics in diagnosing vehicle issues by analyzing fault codes, symptoms, and sensor data. It guides users through diagnostic steps, offers explanations, and integrates with OBD2 adapters for real-time vehicle information.

Car Scanner ELM OBD2 - Torque

Fixd & Check Engine Diagnostic

Free

Transform your iPhone into a powerful car diagnostic tool. Read and clear trouble codes, monitor live vehicle sensor data, and understand check engine light warnings. Works with most vehicles manufactured since 1996 using standard OBD2 adapters.

BlueDriver OBD2 Scan Tool

Fear No Fix™

Free

This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.

Alfa OBD2 Car Scanner Pro

Car Diagnostic Software

Free

Diagnose your vehicle with this app. Read and clear trouble codes, monitor real-time engine data like speed and RPM, and manage multiple vehicles. Requires an ELM 327 Bluetooth OBD2 adapter.

Carly — OBD2 car scanner

Diagnose, Code and Service

Free

This app provides comprehensive car diagnostics, live engine data, and repair guides. It helps users understand their car's health, perform maintenance, and even unlock hidden features. Compatible with a wide range of car brands, it empowers owners to take control of their vehicle's upkeep.

ThinkDiag+

by THINKCAR INC

Free

This app provides professional-level vehicle diagnostics, offering features like reading/clearing fault codes, data flow analysis, and special maintenance functions. It supports a wide range of car brands and allows users to subscribe to specific diagnostic software. Connects via Bluetooth to your smartphone for intelligent vehicle analysis.