Best Elm 327 Scan Apps

240+ iOS apps curated and reviewed

3.9 avg rating
19 free apps
Updated October 2026

OBD2 Scanner ELM327 is the household name in elm 327 scan, but it's far from the only option. We track 240+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Elm 327 Scan Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1OBD2 Scanner ELM327: GarageProOBD2 Scanner ELM327: GarageProFree4.3★ (25)NoYesOct 2026
2OBD2 Car Scanner ELM327: CavoxOBD2 Car Scanner ELM327: CavoxFree5.0★ (5)NoYesOct 2026
3OBDII Scanner ELM327 OBD2OBDII Scanner ELM327 OBD2Free3.6★ (8)NoYesOct 2026
4OBD2 Scanner: Torque ELM 327OBD2 Scanner: Torque ELM 327Free4.6★ (1.1K)YesYesOct 2026
5inCarDoc OBD2 ELM327 ScannerinCarDoc OBD2 ELM327 ScannerFree3.1★ (156)YesYesOct 2026
6OBD2 Car Scanner Pro ELM327OBD2 Car Scanner Pro ELM327Free4.5★ (2)NoYesOct 2026
7ScanMaster Lite: ELM327 OBD-2ScanMaster Lite: ELM327 OBD-2Free3.7★ (6)NoYesOct 2026
8OBD2 Car Scanner ELM327, HT500OBD2 Car Scanner ELM327, HT500Free—YesYesOct 2026

Top Picks for Elm 327 Scan

4.3😞(25 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.

What We Love

  • ✅ Clears trouble codes
  • ✅ Scans vehicle quickly
  • ✅ Provides real-time data
  • ✅ User-friendly interface
  • ✅ Saves money on repairs
  • ✅ Works on various car models
  • ✅ Good for live data
  • ✅ Simple UI
  • ✅ PDF reports available
  • ✅ Responsive customer support (in some cases)
  • ✅ Solves specific car problems

Room to Improve

  • ❌ App crashes frequently
  • ❌ Does not load past splash screen
  • ❌ Not responding properly on iPhone
  • ❌ Cannot select new vehicle after changing cars
  • ❌ Fails to buy subscription
  • ❌ Perpetual license issues (lost after reinstall)
  • ❌ No response from support
  • ❌ Does not cover adblue system
  • ❌ No refunds offered
  • ❌ Cannot contact support via email/phone
  • ❌ Subscription not accessible
  • ❌ Service reset requires payment, then states not available
  • ❌ Shows false error codes
  • ❌ Requires uninstall to connect
  • ❌ Never works for Mini
  • ❌ Wouldn't reset airbag
  • ❌ Paid but doesn't work (no error codes found)
  • ❌ False advertising
  • ❌ Only works with Bluetooth adapters (not WiFi for iOS)
  • ❌ Will not link to iPhone
  • ❌ Not working on multiple car models
  • ❌ Only works with certain scanners
  • ❌ Money deducted, subscription not renewed
  • ❌ Not able to add Google ID on iPhone
  • ❌ Doesn't work at all for clearing codes
  • ❌ No communication from developer
  • ❌ Not functional after updates
  • ❌ Cannot pull or clear codes
  • ❌ Most GM PIDs not available
  • ❌ Live View Advanced PIDs missing
  • ❌ Does nothing for ABS module
  • ❌ Cannot escape error screen
  • ❌ Freezes or gives error during scan
  • ❌ Closes off and won't open
  • ❌ Cannot clear codes after paying for subscription
  • ❌ Requires account creation before use
  • ❌ Doesn't work with specific OBD adapters
  • ❌ Scanning issue (stops at 4%)
  • ❌ Injector coding not working
  • ❌ Not compatible with WiFi adapters for iOS
OBD2 Car Scanner ELM327: Cavox#2

OBD2 Car Scanner ELM327: Cavox by Larisa Kozlova

Check engine light? AI verdict
Strong Contender
🔧 Utilities
5.0(5 ratings)
FreeIn-App Purchases
OBD2 Car Scanner ELM327: Cavox screenshot 1
OBD2 Car Scanner ELM327: Cavox screenshot 2
OBD2 Car Scanner ELM327: Cavox screenshot 3
OBD2 Car Scanner ELM327: Cavox screenshot 4
OBD2 Car Scanner ELM327: Cavox screenshot 5
OBD2 Car Scanner ELM327: Cavox screenshot 6

This app connects to your car's OBD2 adapter to read and explain diagnostic trouble codes in plain language. It offers AI-powered insights into potential issues, repair costs, and live sensor data, helping you understand your vehicle's health.

OBDII Scanner ELM327 OBD2#3

OBDII Scanner ELM327 OBD2 by paul moore

OBD2 Scanner and Trouble codes
Worth Considering
🔧 Utilities
3.6(8 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

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 October 2026, with a 4.3-star average from 25 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 Car Scanner ELM327: Cavox.
OBD2 Scanner ELM327: GaragePro has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 240+ elm 327 scan apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.