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Best Elm 327 Interface Apps

200+ iOS apps curated and reviewed

3.8 avg rating
20 free apps
Updated August 2026

Out of 200+ elm 327 interface apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Elm 327 Interface Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Car Scanner ELM OBD2Car Scanner ELM OBD2Free4.8★ (32K)YesYesSep 2026
2ELM327 WiFi DiagnosticELM327 WiFi DiagnosticFree1.0★ (1)NoNoMay 2026
3OBD2 Car Scanner - EOBD FacileOBD2 Car Scanner - EOBD FacileFree4.6★ (5K)NoYesAug 2026
4OBDII Scanner ELM327 OBD2OBDII Scanner ELM327 OBD2Free3.4★ (5)NoYesAug 2026
5Car Scanner ELM OBD2 - TorqueCar Scanner ELM OBD2 - TorqueFree4.5★ (15)YesYesAug 2026
6ELM327 WiFi DetectELM327 WiFi DetectFree—NoNoMay 2026
7Elm 327 Car Scanner - Plier.AIElm 327 Car Scanner - Plier.AIFree5.0★ (5)NoYesAug 2026
8Autmet | OBD2 ScannerAutmet | OBD2 ScannerFree5.0★ (1)NoNoAug 2026

Top Picks for Elm 327 Interface

Car Scanner ELM OBD2#1

Car Scanner ELM OBD2 by Stanislav Svistunov

The best OBD2 diagnostic tool!
Editor's Choice
🔧 Utilities
4.8😊(32K ratings)
FreeAdsIn-App Purchases
Car Scanner ELM OBD2 screenshot 1
Car Scanner ELM OBD2 screenshot 2
Car Scanner ELM OBD2 screenshot 3
Car Scanner ELM OBD2 screenshot 4
Car Scanner ELM OBD2 screenshot 5
Car Scanner ELM OBD2 screenshot 6

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.

What We Love

  • 🚀 Works great with cheap OBD2 adapters
  • 👍 Highly customizable dashboard
  • 👍 Comprehensive sensor data
  • 👍 Helpful error code lookup

Room to Improve

  • 🐛 Occasional connection issues
  • 🐛 Incorrect sensor readings for some vehicles
  • 🐛 Crashes or freezes on some devices
ELM327 WiFi Diagnostic#2

ELM327 WiFi Diagnostic by Kamil Kubis

Car diagnostic
Strong Contender
🔧 Utilities
1.0(1 ratings)
Free
ELM327 WiFi Diagnostic screenshot 1
ELM327 WiFi Diagnostic screenshot 2
ELM327 WiFi Diagnostic screenshot 3
ELM327 WiFi Diagnostic screenshot 4
ELM327 WiFi Diagnostic screenshot 5

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.

OBD2 Car Scanner - EOBD Facile#3

OBD2 Car Scanner - EOBD Facile by OUTILS OBD FACILE SARL

Torque & ELM327 OBD Diagnostic
Worth Considering
🔧 Utilities
4.6😐(5K ratings)
FreeIn-App Purchases
OBD2 Car Scanner - EOBD Facile screenshot 1
OBD2 Car Scanner - EOBD Facile screenshot 2
OBD2 Car Scanner - EOBD Facile screenshot 3
OBD2 Car Scanner - EOBD Facile screenshot 4
OBD2 Car Scanner - EOBD Facile screenshot 5
OBD2 Car Scanner - EOBD Facile screenshot 6

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.

What We Love

  • 👍 Helpful for diagnosing issues
  • 🚀 Easy to use and connect
  • 💡 Provides useful vehicle data
  • 🔍 Able to read and clear error codes

Room to Improve

  • 💰 Expensive for full functionality
  • 🔒 Requires paid upgrade to access key features
  • 🐛 Connectivity issues and app crashes

More Elm 327 Interface apps to explore

4
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
5
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
6
ELM327 WiFi Detect
ELM327 WiFi Detect
ELM327 WiFi Detect
by Kamil Kubis
Free
🔧 Utilities
(0)
7
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
8
Autmet | OBD2 Scanner
Autmet | OBD2 Scanner
Autmet | OBD2 Scanner
OBD2 scanner & car diagnostic
Free

This diagnostic tool connects to your vehicle's OBD data via a Bluetooth device. It allows you to read various ECU data and supports common OBD-II protocols.

Reads vehicle ECU dataBluetooth OBD device compatibleSupports OBD-II protocols
🔧 Utilities
(1)
free
9
Fixlith Scan - OBD2 Car AI
Fixlith Scan - OBD2 Car AI
Fixlith Scan - OBD2 Car AI
OBD2 Scanner & AI Diagnostics
Free
🔧 Utilities
(0)
10
Elm327 OBD Info
Elm327 OBD Info
Elm327 OBD Info
by Kamil Kubis
Free

This application checks OBD protocols in cars by connecting to an ELM327 device. It supports all major OBD-II protocols and all versions of the ELM327 hardware, allowing you to check your device's version.

Check OBD protocolsConnect to ELM327 deviceSupports all CAN ISO 15765
🔧 Utilities
(5)
free
11
OBDII Terminal - ELM327
OBDII Terminal - ELM327
OBDII Terminal - ELM327
OBDII Terminal for Developer
Free
🛠️ Developer Tools
(0)
12
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
13
BimmerDash: OBD2 Gauge
BimmerDash: OBD2 Gauge
BimmerDash: OBD2 Gauge
Real-time performance monitor
Free
🔧 Utilities
(0)
14
MechanicAI - OBD2 ELM Car Scan
MechanicAI - OBD2 ELM Car Scan
MechanicAI - OBD2 ELM Car Scan
OBD2 Scanner with AI Diagnosis
Free
🔧 Utilities
(0)
15
Elm327 WiFi Terminal OBD
Elm327 WiFi Terminal OBD
Elm327 WiFi Terminal OBD
by Kamil Kubis
Free

Connect to your car's OBD2 system using an ELM327 WiFi device. This utility allows you to send AT commands and scan car data. It's compatible with all OBD2-equipped vehicles and ELM327 WiFi devices.

Connect to ELM327 WiFi devicesScan car commandsSupports all OBD2 cars
🔧 Utilities
(14)
free
16
OBD Live: Car Scanner & OBD2
OBD Live: Car Scanner & OBD2
OBD Live: Car Scanner & OBD2
ELM327 Bluetooth Diagnostics
Free
🔧 Utilities
(0)
17
AutoCheck OBD
AutoCheck OBD
AutoCheck OBD
OBD2 Scanner & Fault Codes
Free

Transform your iPhone into a professional OBD-II scanner. Read and clear diagnostic trouble codes with plain-language explanations, view live engine data in real-time, and generate comprehensive diagnostic reports. Explore all features with a demo mode before connecting an adapter.

Read and clear DTCsPlain-language code descriptionsLive engine data dashboard
🔧 Utilities
(1)
free
18
DriveSense: OBD2 Car Scanner
DriveSense: OBD2 Car Scanner
DriveSense: OBD2 Car Scanner
Live engine & sensor data
Free
🔧 Utilities
(0)
19
Rheosoft OBD2
Rheosoft OBD2
Rheosoft OBD2
by James Mittler II
Free
🔧 Utilities
(0)
20
OBD2 Logger
OBD2 Logger
OBD2 Logger
by Daehyun Nam
Free
🔧 Utilities
(0)

FAQ about Elm 327 Interface

What are the best elm 327 interface apps for iPhone?
Car Scanner ELM OBD2 tops our elm 327 interface apps ranking as of August 2026, with a 4.8-star average from 32K App Store ratings, and it's free to download.
Yes — 20 of the top elm 327 interface apps we rank are free to download, including Car Scanner ELM OBD2 and ELM327 WiFi Diagnostic.
Car Scanner ELM OBD2 shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 200+ elm 327 interface apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app acts as a vehicle diagnostic tool, performance monitor, and trip computer. It connects to your car's OBD2 engine management system via a Wi-Fi or Bluetooth adapter to display real-time sensor data, read and reset fault codes, and provide detailed vehicle information.
Key features include real-time sensor data display, the ability to read and reset DTC fault codes with a large database of descriptions, customizable dashboards with gauges and charts, extended PID support for hidden information, Mode 06 test results, emission test readiness checks, and accurate acceleration measurements.