Best Obdiq Apps

247+ iOS apps curated and reviewed

3.4 avg rating
18 free apps
Updated August 2026

CarDr is the household name in obdiq, but it's far from the only option. We track 247+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Obdiq Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1CarDr - OBD IQCarDr - OBD IQFree5.0★ (6)NoNoJun 2026
2Mini OBDIIMini OBDIIFree3.4★ (5)NoNoAug 2026
3UJS OBDIIUJS OBDIIFree5.0★ (1)NoNoMay 2026
4OBD CompassOBD CompassFreeNoNoAug 2026
5DiagonalOBDIIDiagonalOBDIIFree5.0★ (1)NoYesAug 2026
6LeLink SecurityLeLink SecurityFree1.0★ (1)NoNoAug 2026
7OBDII Terminal - ELM327OBDII Terminal - ELM327FreeNoNoAug 2026
8OBDII AIOBDII AIFreeNoNoAug 2026

Top Picks for Obdiq

CarDr - OBD IQ#1

CarDr - OBD IQ by CarDr.com Inc

CarDr.com's OBD IQ
Editor's Choice
💼 Business
5.0(6 ratings)
Free
CarDr - OBD IQ screenshot 1
CarDr - OBD IQ screenshot 2
CarDr - OBD IQ screenshot 3
CarDr - OBD IQ screenshot 4

This app provides automotive professionals with fast, in-depth vehicle diagnostics. It offers comprehensive coverage of diagnostic trouble codes and repair estimates, helping users protect profits and reduce risk.

UJS OBDII#3

UJS OBDII by UJS INC

OBD Tool
Worth Considering
🔧 Utilities
5.0(1 ratings)
Free
UJS OBDII screenshot 1
UJS OBDII screenshot 2
UJS OBDII screenshot 3
UJS OBDII screenshot 4

This professional car diagnostic app connects to UJS OBDII devices via Bluetooth to read and clear fault codes, monitor real-time vehicle performance, and analyze travel data. It supports multiple languages and offers high-speed, low-power data transmission.

More Obdiq apps to explore

4
OBD Compass
OBD Compass
OBD Compass
Smart Scanner In Your Pocket
Free
🔧 Utilities
(0)
5
DiagonalOBDII
DiagonalOBDII
DiagonalOBDII
OBDII Drive Cycle App
Free

This app helps mechanics perform vehicle drive cycles more efficiently. It provides real-time monitoring of emissions monitors and diagnostic trouble codes (DTCs), offering clear guidance and instant explanations to ensure vehicles pass inspection quickly and accurately.

Live drive cycle monitoringImmediate diagnostic trouble code (DTC) identificationReal-time emissions monitor status
📊 Productivity
(1)
free with in-app purchases
6
LeLink Security
LeLink Security
LeLink Security
by K SOLUTION LLC
Free

This application allows users to enable or disable password protection for their LeLink OBDII adapter. It guides users through the configuration process, ensuring secure access to the adapter's functions. The app requires the adapter to be powered on within a specific timeframe for setup.

Enable/disable password protectionSecure OBDII adapter accessDevice scanning and listing
🔧 Utilities
(1)
free
7
OBDII Terminal - ELM327
OBDII Terminal - ELM327
OBDII Terminal - ELM327
OBDII Terminal for Developer
Free
🛠️ Developer Tools
(0)
8
OBDII AI
OBDII AI
OBDII AI
Support DA200 series products.
Free
🔧 Utilities
(0)
9
OBD BLE Debug
OBD BLE Debug
OBD BLE Debug
by JEAN SCHURGER
Free

This tool allows developers and researchers to debug and explore OBD-II adapters using Bluetooth Low Energy. It facilitates direct interaction with ELM327 adapters, analyzes communications, and identifies supported PIDs for vehicles.

Discover and connect to BLE devicesELM327 adapter initializationAutomated PID scan
🛠️ Developer Tools
(1)
free
10
ELM327 WiFi Diagnostic
ELM327 WiFi Diagnostic
ELM327 WiFi Diagnostic
Car diagnostic
Free

This utility app connects to your vehicle's onboard diagnostics system via an ELM327 WiFi adapter. It allows you to check your car's version and supported protocols, and includes example commands for troubleshooting.

ELM327 version supportAll protocol supportVersion and protocol checking
🔧 Utilities
(1)
free
11
OBDII Scanner ELM327 OBD2
OBDII Scanner ELM327 OBD2
OBDII Scanner ELM327 OBD2
OBD2 Scanner and Trouble codes
Free

This app allows you to scan your car's trouble codes and view live data using an OBD2 Bluetooth adapter. It logs statistics and freeze frames for future reference, storing all diagnostic trouble codes (DTCs) on a server.

Scan car trouble codesView live dataLog live statistics
🔧 Utilities
(5)
free with in-app purchases
12
Freematics Emulator
Freematics Emulator
Freematics Emulator
by Shanghai Han Yu Information Technologies Co., Ltd.
Free

This utility allows real-time control of Freematics OBD-II Emulators via Bluetooth Low Energy. Users can adjust PIDs, DTCs, and VIN, and easily manage custom knobs for different data points.

Real-time OBD-II PID adjustmentDTC and VIN modificationBLE connection to emulators
🔧 Utilities
(5)
free
13
FasLink X
FasLink X
FasLink X
First Step to Pro.
Free

Diagnose vehicle issues and access repair solutions. This app connects wirelessly to your car's OBDII port to scan and clear trouble codes, monitor battery health, and provide detailed repair reports based on millions of reported fixes.

Scan and clear trouble codesGenerate and share repair reportsBattery monitor
🔧 Utilities
(103)
free with in-app purchases
14
AutoOBDII
AutoOBDII
AutoOBDII
OBD Tool
Free

This application connects to your vehicle via Bluetooth to perform diagnostics and offer driving assistance. It can read and clear fault codes, analyze performance, and track your journeys. Supports multiple languages and high-speed data transmission.

Bluetooth vehicle communicationFault code reading and clearingInstrument panel monitoring
🔧 Utilities
(1)
free
15
BlueDriver OBD2 Scan Tool
BlueDriver OBD2 Scan Tool
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.

Read and clear trouble codes (Check Engine, ABS, etc.)Generate professional-grade Repair ReportsAccess Mode 6 and smog readiness data
📊 Productivity
(14K)
free with in-app purchases
16
OBDII Trouble Codes Lite
OBDII Trouble Codes Lite
OBDII Trouble Codes Lite
Car diagnostic database
Free

Access a comprehensive database of OBD II diagnostic trouble codes. Quickly look up definitions for generic and manufacturer-specific codes without an internet connection. Easily copy and share code descriptions.

Extensive OBD II code definitionsOffline accessNo car model selection needed
🔧 Utilities
(7)
ad-supported
17
OBD2 Cat
OBD2 Cat
OBD2 Cat
Simple Car Scanner
Free
🔧 Utilities
(0)
18
Dashmazing - OBD 2
Dashmazing - OBD 2
Dashmazing - OBD 2
Real-Time OBD Gauges and more
Free
$9.99 | 100% OFF
⚽ Sports
(0)
19
OBD Tracker - ELM327 Terminal
OBD Tracker - ELM327 Terminal
OBD Tracker - ELM327 Terminal
Pro Tools OBDII,OBD2,ELM327
$4.99

This application connects to your car's OBDII interface via Wi-Fi using an ELM327 module. It provides a step-by-step guide to help you set up the connection and start reading data from your vehicle's diagnostic system.

Wi-Fi ELM327 module communicationStep-by-step connection guideOBDII/OBD2 car interface support
✈️ Travel
(82)
free
20
Torque OBD 2 & Car Pro
Torque OBD 2 & Car Pro
Torque OBD 2 & Car Pro
OBD2,OBDII,ELM327 scan tools!
$9.99

Easily connect to your car's OBD2 port to monitor its performance in real-time. The app guides you through the connection process and supports various OBDII protocols for comprehensive diagnostics.

Real-time car data monitoringOBD2 port location guideConnect via WiFi to OBDII/ELM327 devices
🔧 Utilities
(88)
free

FAQ about Obdiq

What are the best obdiq apps for iPhone?
CarDr - OBD IQ tops our obdiq apps ranking as of August 2026, with a 5.0-star average from 6 App Store ratings, and it's free to download.
Yes — 18 of the top obdiq apps we rank are free to download, including CarDr - OBD IQ and Mini OBDII.
CarDr - OBD IQ has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 247+ obdiq apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
OBD IQ is designed to provide automotive professionals with fast and comprehensive vehicle diagnostic insights. It helps identify issues, estimate repair costs, and monitor emissions systems for a wide range of vehicles.
Diagnostics are completed in under 15 seconds, significantly saving valuable time for automotive professionals.

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