Best Elm 327 Scan Apps

238+ iOS apps curated and reviewed

4.0 avg rating
19 free apps
Updated August 2026

OBD2 Scanner ELM327 is the household name in elm 327 scan, but it's far from the only option. We track 238+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Elm 327 Scan Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1OBD2 Scanner ELM327: GarageProOBD2 Scanner ELM327: GarageProFree4.3★ (19)NoYesAug 2026
2OBD2 Scanner: Torque ELM 327OBD2 Scanner: Torque ELM 327Free4.6★ (927)YesYesAug 2026
3OBDII Scanner ELM327 OBD2OBDII Scanner ELM327 OBD2Free3.4★ (5)NoYesAug 2026
4Car Scanner ELM OBD2Car Scanner ELM OBD2Free4.8★ (32K)YesYesSep 2026
5inCarDoc OBD2 ELM327 ScannerinCarDoc OBD2 ELM327 ScannerFree3.1★ (155)YesYesAug 2026
6MotorData OBD ELM car scannerMotorData OBD ELM car scannerFree4.6★ (48)NoYesAug 2026
7OBD2 Car Scanner ELM327: CavoxOBD2 Car Scanner ELM327: CavoxFree5.0★ (1)NoYesAug 2026
8OBDAI OBD2 Scanner & ELM327 AIOBDAI OBD2 Scanner & ELM327 AIFree4.5★ (13)NoYesAug 2026

Top Picks for Elm 327 Scan

OBD2 Scanner ELM327: GaragePro#1

OBD2 Scanner ELM327: GaragePro by Zymbia Interactive Technologies Private Limited

OBD Scanning at turbo speed!
Editor's Choice
🔧 Utilities
4.3(19 ratings)
FreeIn-App Purchases
OBD2 Scanner ELM327: GaragePro screenshot 1
OBD2 Scanner ELM327: GaragePro screenshot 2
OBD2 Scanner ELM327: GaragePro screenshot 3
OBD2 Scanner ELM327: GaragePro screenshot 4
OBD2 Scanner ELM327: GaragePro screenshot 5
OBD2 Scanner ELM327: GaragePro screenshot 6

This app provides comprehensive OBD scanning for vehicles, allowing users to read and clear fault codes from various ECUs, monitor live sensor data, and perform special functions like DPF regeneration and injector coding. It supports over 100 vehicle makes and offers detailed reports and diagnostic assistance.

OBD2 Scanner: Torque ELM 327#2

OBD2 Scanner: Torque ELM 327 by Phong Pham

Torque OBD2 Car Scanner ELM327
Strong Contender
🔧 Utilities
4.6😞(927 ratings)
FreeAdsIn-App Purchases
OBD2 Scanner: Torque ELM 327 screenshot 1
OBD2 Scanner: Torque ELM 327 screenshot 2
OBD2 Scanner: Torque ELM 327 screenshot 3
OBD2 Scanner: Torque ELM 327 screenshot 4
OBD2 Scanner: Torque ELM 327 screenshot 5
OBD2 Scanner: Torque ELM 327 screenshot 6

Transform your smartphone into a powerful car diagnostic tool. Monitor real-time engine data, read and clear trouble codes, and track your vehicle's performance. Customize your dashboard and access repair manuals to understand and fix issues.

What We Love

  • 👍 Simple and easy to use setup
  • ✅ Works well for some vehicle models
  • ⭐ Useful for basic OBD2 scanning

Room to Improve

  • 💰 Expensive pricing for limited functionality
  • 🐛 Bluetooth connection drops frequently
  • ❌ Poor compatibility with many vehicle models
OBDII Scanner ELM327 OBD2#3

OBDII Scanner ELM327 OBD2 by paul moore

OBD2 Scanner and Trouble codes
Worth Considering
🔧 Utilities
3.4(5 ratings)
FreeIn-App Purchases
OBDII Scanner ELM327 OBD2 screenshot 1
OBDII Scanner ELM327 OBD2 screenshot 2
OBDII Scanner ELM327 OBD2 screenshot 3
OBDII Scanner ELM327 OBD2 screenshot 4
OBDII Scanner ELM327 OBD2 screenshot 5
OBDII Scanner ELM327 OBD2 screenshot 6

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.

More Elm 327 Scan apps to explore

4
Car Scanner ELM OBD2
Car Scanner ELM OBD2
Car Scanner ELM OBD2
The best OBD2 diagnostic tool!
Free

Monitor your car's performance, diagnose engine issues, and view sensor data in real-time. Customize your dashboard with gauges and charts, and reset fault codes. Supports a wide range of vehicles and offers advanced features for specific car brands.

Real-time sensor dataOBD fault code reading and resettingCustomizable dashboard with gauges
🔧 Utilities
(32K)
free with in-app purchases
5
inCarDoc OBD2 ELM327 Scanner
inCarDoc OBD2 ELM327 Scanner
inCarDoc OBD2 ELM327 Scanner
Car diagnostic, check engine
Free

This app acts as a car diagnostic tool, allowing users to scan fault codes, monitor real-time engine parameters, and log vehicle maintenance. It helps optimize car performance and control fuel consumption by accessing ECU data.

OBD2 fault code scannerReal-time parameter monitoringLogbook for diagnostics and maintenance
✈️ Travel
(155)
free with in-app purchases
6
MotorData OBD ELM car scanner
MotorData OBD ELM car scanner
MotorData OBD ELM car scanner
Car diagnostic. Dashboard.
Free

Transform your smartphone into a comprehensive car diagnostic tool. Read and clear trouble codes, monitor real-time vehicle performance, and customize your dashboard for a deeper understanding of your car's health. Includes free engine diagnostics with optional advanced features for specific brands.

Deep diagnostics for up to 25 ECUsOne-touch scan for trouble codesDecode DTCs and clear Check Engine Light
🔧 Utilities
(48)
free with in-app purchases
7
OBD2 Car Scanner ELM327: Cavox
OBD2 Car Scanner ELM327: Cavox
OBD2 Car Scanner ELM327: Cavox
Check engine light? AI verdict
Free

Decode your car's check engine light with AI. Get plain-language explanations of trouble codes, likely causes, and urgency. Monitor live sensor data and track your car's history.

Plain-language verdict for trouble codesAI explanations of fault codesLive sensor monitoring (RPM, temp, etc.)
🔧 Utilities
(1)
freemium
8
OBDAI OBD2 Scanner & ELM327 AI
OBDAI OBD2 Scanner & ELM327 AI
OBDAI OBD2 Scanner & ELM327 AI
AI Mechanic + Repair Videos
Free

This app uses AI to diagnose car issues, providing detailed reports and repair guidance. It offers real-time scanning, visual code reading, and predictive maintenance insights. Access embedded repair videos and component location photos for guided troubleshooting.

AI-powered car diagnosticsProfessional diagnostic reportsVisual code reader with repair videos
📊 Productivity
(13)
free with in-app purchases
9
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
10
ScanMaster Lite: ELM327 OBD-2
ScanMaster Lite: ELM327 OBD-2
ScanMaster Lite: ELM327 OBD-2
OBD2 Car Scanner & Diagnostics
Free

Monitor your car's real-time data, diagnose issues, and enhance performance with this OBD2 scanner app. Connect via Bluetooth to an OBD2 device or ELM 327 adapter to read fault codes and gain insights into engine health and fuel efficiency.

Real-time vehicle monitoringRead and clear OBD-II fault codesCar performance metrics
🔧 Utilities
(6)
freemium
11
OBD2 Car Scanner ELM 327 DTC
OBD2 Car Scanner ELM 327 DTC
OBD2 Car Scanner ELM 327 DTC
OBD Check Engine Code Reader
Free
🔧 Utilities
(0)
12
Car Scanner ELM OBD2 327
Car Scanner ELM OBD2 327
Car Scanner ELM OBD2 327
OBD2 Diagnostic tool ELM 327
Free

Transform your smartphone into a powerful car diagnostic tool. Connect with a compatible OBD2 adapter to read trouble codes, monitor live sensor data, and understand your vehicle's health in real-time. Gain clarity on warning lights and prevent costly repairs with this intuitive automotive companion.

Read OBD2 Diagnostic Trouble Codes (DTC)Monitor live sensor dataReset Check Engine Light
🔧 Utilities
(12)
free with in-app purchases
13
Elm 327 Car Scanner - Plier.AI
Elm 327 Car Scanner - Plier.AI
Elm 327 Car Scanner - Plier.AI
Torque Pro Obd2 Scanner Elm327
Free

Transform your iPhone into an AI-powered car diagnostic tool. Connect to your vehicle via an OBD2 device to understand its health, diagnose issues, and estimate repair costs.

AI-driven diagnostic reportsReal-time OBD2 data and graphsCheck engine light insights
🔧 Utilities
(5)
free with in-app purchases
14
Car Scanner ELM OBD2 - Torque
Car Scanner ELM OBD2 - Torque
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.

Read and clear OBD2 trouble codesUnderstand check engine light warningsMonitor live vehicle sensor data
🔧 Utilities
(15)
free with in-app purchases
15
Car Scanner: OBD2 ELM Reader
Car Scanner: OBD2 ELM Reader
Car Scanner: OBD2 ELM Reader
OBD diagnostics for ELM327
Free

Transform your smartphone into a car diagnostic tool. Read and clear trouble codes, monitor real-time engine data, and access manufacturer-specific information. Analyze driving behavior and track fuel efficiency.

Read and clear OBD2 trouble codesReal-time car data monitoringManufacturer-specific code access
🔧 Utilities
(2)
freemium
16
Infocar - OBD2 ELM Scanner
Infocar - OBD2 ELM Scanner
Infocar - OBD2 ELM Scanner
OBD2 scanner & car diagnostic
Free

Monitor your vehicle's health and performance with this app. It offers real-time diagnostics, driving style analysis, and maintenance tracking. Connect to your car's OBD2 scanner for detailed insights and improved driving habits.

Vehicle diagnostics and fault code clearingReal-time sensor data monitoringCustomizable dashboard with HUD
🔧 Utilities
(270)
free with in-app purchases
17
ScanMaster for ELM327 OBD-2
ScanMaster for ELM327 OBD-2
ScanMaster for ELM327 OBD-2
by SMART Technologies GmBH
$4.99

This app enables vehicle diagnostics using an ELM327 interface. It connects to your car's OBD2 port to read diagnostic trouble codes and vehicle information. Follow simple steps to set up the connection and start diagnosing your vehicle.

Vehicle diagnosticsOBD-2 standards communicationConnects with ELM327 devices
💼 Business
(154)
free
18
OBD2 Car Scanner - EOBD Facile
OBD2 Car Scanner - EOBD Facile
OBD2 Car Scanner - EOBD Facile
Torque & ELM327 OBD Diagnostic
Free

Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.

Read and clear engine fault codesMonitor real-time sensor dataTurn off check engine light
🔧 Utilities
(5K)
free with in-app purchases
19
OBD2 AI SKANR: Car Scanner ELM
OBD2 AI SKANR: Car Scanner ELM
OBD2 AI SKANR: Car Scanner ELM
ELM 327 OBD 2 Engine Codes DTC
Free
🔧 Utilities
(0)
20
OBD2™ Car Scanner・ELM 327 Scan
OBD2™ Car Scanner・ELM 327 Scan
OBD2™ Car Scanner・ELM 327 Scan
OBD Diagnostics・Repair Doctor
Free

Transform your smartphone into a powerful OBD2 diagnostic tool. Read and clear fault codes, monitor real-time performance metrics, and test your vehicle's acceleration and emissions. Compatible with a wide range of car brands and OBD2 scanners.

Universal OBD2 scanner compatibilityRead and erase fault codesReal-time performance metrics
🔧 Utilities
(13)
freemium

FAQ about Elm 327 Scan

What are the best elm 327 scan apps for iPhone?
OBD2 Scanner ELM327: GaragePro tops our elm 327 scan apps ranking as of August 2026, with a 4.3-star average from 19 App Store ratings, and it's free to download.
Yes — 19 of the top elm 327 scan apps we rank are free to download, including OBD2 Scanner ELM327: GaragePro and OBD2 Scanner: Torque ELM 327.
OBD2 Scanner ELM327: GaragePro has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 238+ elm 327 scan apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app functions as a comprehensive OBD scanning tool for vehicles. It allows you to read and delete fault codes from various ECUs, monitor live sensor data in real-time, and perform specialized functions such as injector coding and DPF regeneration. It also provides assistance with check engine lights and other dashboard warnings.
Key features include reading and clearing fault codes from Engine, ABS, SRS, and more; monitoring over 200 live data points with customizable graphs; accessing multi-mode OBD2 coverage; performing special functions like DPF regeneration and throttle reset; generating shareable PDF reports; and checking SMOG status for emission tests.