Comparison

OBD2 Trouble Code vs Car Scanner ELM OBD2 327

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OBD2 Trouble Code

Instantly look up your car's check engine codes on the go. Access a vast database of OBD2 codes with descriptions and potential causes for all major manufacturers. Save your search history for quick reference.

Highlights
  • OBD2 code lookup
  • Check engine code descriptions
  • Possible cause identification
  • All major manufacturers supported
  • Search history
  • Save results
Features
Read full description

OBD2 Code Guide app to look up your car check engine code on the go, powered by the web's largest database of OBD2 code library. Get the description and the possible cause of the check engine code by searching for the code for all of the major manufacturers and now with quick access to your search history and save results to for use at a later date.

About

Car Scanner ELM OBD2 327

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.

Highlights
  • Read OBD2 Diagnostic Trouble Codes (DTC)
  • Monitor live sensor data
  • Reset Check Engine Light
  • View freeze-frame data
  • Customize dashboard with gauges
  • Export OBD2 data in .csv format
Features
Read full description

Car Scanner OBD2 is a powerful and user-friendly diagnostic tool designed to help every driver understand their car with clarity and confidence. Whether you want to check why a warning light is on, monitor your car’s performance in real time, or simply keep your vehicle in good health, this app turns your phone into a smart automotive companion. With a compatible OBD2 adapter (Wi-Fi or Bluetooth), the app connects directly to your car’s onboard system and reveals detailed information normally available only to mechanics. You’ll see what’s happening under the hood through intuitive dashboards, clear charts, and easy-to-read explanations—so you always know what your car is trying to tell you. Capabilities & Benefits • Read readiness monitor status and confirm if your car is ready for inspection or emission testing • Read OBD2 Diagnostic Trouble Codes (DTC) with full explanations and detailed descriptions • Reset the Check Engine Light after the issue is resolved • View freeze-frame data to understand the conditions when a fault occurred • Monitor live sensors such as coolant temperature, RPM, fuel trims, oxygen sensors, throttle position, air intake, and more • Track all supported OBD2 sensors in numerical or graphical form • Customize your dashboard with gauges and charts you prefer • Add extended PIDs and access manufacturer-specific data when supported • Use real-time monitoring to spot abnormalities early and prevent costly repairs • Check whether your car is ready for a long road trip • Compatible with most vehicles using the OBD2 standard (varies by region, typically 1996+) Additional Features • Export OBD2 data in .csv format • Read VIN, calibration IDs, and ECU information (when available) • Highly customizable dashboard for enthusiasts who want deeper insights • Simple layout and helpful explanations for casual drivers who just want clarity Adapter Requirements The app requires a Wi-Fi or Bluetooth OBD2 adapter (ELM327-compatible). Recommended brands include: OBDLink, Veepeak, Vgate, Kiwi 3, Viecar, Carista. Avoid very cheap ELM327 clones, as they often cause connection issues, unstable data, or incomplete readings. For the best experience, we recommend verified adapters. Please note: The app can only display data that your vehicle’s ECU provides. Some cars may support fewer sensors or features. Pricing Car Scanner OBD2 offers free basic functionality. To unlock all advanced features, a one-time purchase or subscription is available. Support If you need help or have any questions, we’re always here for you. You can reach our support team directly through the app or via email support@kahastudio.com Take control of your car’s health with clarity. With Car Scanner OBD2, you always know what’s going on under the hood. By using the app, you agree to follow our terms and privacy policy: Policy: https://kahastudio.com/privacy-policy.html Terms: https://kahastudio.com/terms-of-use.html Contact: https://kahastudio.com/contact-us.html

Screenshots

OBD2 Trouble Code4 screens
Car Scanner ELM OBD2 3274 screens

Verdict

The call

The clearest difference is in-app purchases: OBD2 Trouble Code at none against Car Scanner ELM OBD2 327's 2. OBD2 Trouble Code also leads on ratings volume (306 vs 15) and iOS requirement (10.0 vs 13.0). Car Scanner ELM OBD2 327's advantage is rating (3.5 vs 3.3). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Car Scanner ELM OBD2 327 sells 2 in-app purchases, starting at $2.99 per month. OBD2 Trouble Code asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Car Scanner ELM OBD2 327 holds the better App Store score, 3.5 against 3.3. That said, the two scores are not equally well evidenced: OBD2 Trouble Code has 306 ratings behind it against 15, so its average is the more settled of the two.

Scorecard5 real differences · 4 level
OBD2 Trouble Code versus Car Scanner ELM OBD2 327: the parameters behind the verdict, then further details
ParameterOBD2 Trouble CodeCar Scanner ELM OBD2 327
PriceFreeFree
Rating3.3 (306 ratings)3.5 (15 ratings) — better
Positive reviews37.0% of reviews—
Number of ratings306 — better15
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better13.0
Further details — not scored
Size24 MB46 MB
Age rating4+4+
DeveloperHassan BenessafiKAHA INNOVATION COMPANY LIMITED

Customer experience

OBD2 Trouble Code

All ratings306 ratings
Positive47.7%
Neutral24.5%
Negative27.8%
Written reviews73 reviews
Positive37.0%
Neutral13.7%
Negative49.3%

Car Scanner ELM OBD2 327

All ratings15 ratings
Positive53.3%
Neutral20.0%
Negative26.7%

Bugs and requests

OBD2 Trouble Code

Reported bugs

6 issues
  • App crashes or won't open without review
  • Ads prevent normal app usage
  • More info button doesn't expand for some codes
  • Incompatibility with certain vehicle models
  • Mislabeled codes (P0450-P0459)
Show 1 more
  • Connection issues with some OBD readers

Requested features

5 requests
  • More detailed code explanations
  • Offline functionality
  • Better navigation for new users
  • Support for codes without letter prefixes
  • Expanded information sections for specific codes

Car Scanner ELM OBD2 327

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

OBD2 Trouble Code

No in-app purchases

2 purchases

Car Scanner ELM OBD2 327

Subscriptions2
  • Monthly3 Days trial$2.991 Month
  • Yearly$9.991 Year

Questions

Is OBD2 Trouble Code free?
OBD2 Trouble Code is free to download, with no in-app purchases.
Is Car Scanner ELM OBD2 327 free?
Car Scanner ELM OBD2 327 is free to download, with in-app purchases available.
Which has better reviews, OBD2 Trouble Code or Car Scanner ELM OBD2 327?
Car Scanner ELM OBD2 327 is rated higher. OBD2 Trouble Code averages 3.3 out of 5 from 306 ratings, while Car Scanner ELM OBD2 327 averages 3.5 from 15 ratings.
Do OBD2 Trouble Code or Car Scanner ELM OBD2 327 have ads?
Neither OBD2 Trouble Code nor Car Scanner ELM OBD2 327 shows ads.

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