Comparison

Engine Link vs OBD2 Trouble Code

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

Head to head
About

Engine Link

Transform your iPhone into a powerful vehicle diagnostics tool. Monitor real-time performance, read and clear fault codes, and customize your dashboard with detailed sensor data. Supports emission testing and offers a HUD mode for night driving.

Highlights
  • Real-time vehicle monitoring
  • Read and clear OBD fault codes
  • Customizable gauges and dashboards
  • MPG widget and fuel efficiency plotting
  • Heads up display (HUD) mode
  • Horsepower, torque, and acceleration metrics
  • Custom PID support
Features
Read full description

EngineLink will turn your iPhone/iPod into vehicle / car performance / diagnostics tool and scanner that uses an OBD II WIFI adapter or a low Energy Bluetooth adapter (LELink, LELink2, Carista, Viecar) to connect to your OBD2 engine management / ECU. The only iPhone app does custom PID, now supports Torque custom PID file. BENEFITS: * Emission Test. * See what your car is doing in real-time. * Read and clear OBD fault codes. * Display car performance and sensor data. * Customizable gauges, showing only the data you were interested in * Top Ranked Car App * No in-app purchase and No subscription fees! __________________ FEATURES: + Show and reset a DTC / CEL / fault code (current, pending and history) like a scan tool + Graph data + MPG widget to plot real time fuel efficiency + Heads up display / HUD mode for night time driving (mirror the display on your vehicle's windshield) + Can read Transmission Temperatures (vehicle dependant) + Horsepower/HP & Torque / acceleration + Boost / vacuum gauge + Engine speed / Engine RPM / Engine Load /Coolant / Fuel Tank + Customizable dashboard + Full configurable GUI with user choice of dial gauge, bar gauge, plot gauge, digital gauge, and on-off gauge as display elements + Full custom PID support. + Formula support. + Preloaded GM and Ford PID libraries + Preloaded standard PID library and Prius PID libraries . + User can add more libraries within the app or by using iTunes File Sharing + Multiple ECU support. Non-CAN, 11-bit CAN, and 29-bit CAN ECU bus types + Multiframe data support + Background color option + Email user log function (access by long pressing custom PID screen) + Multiple PID formula support + 0 to 60mph timer and quarter mile timer __________________ EngineLink supports all OBD-II and EOBD compliant vehicles sold worldwide. If in doubt check with your manufacturer first or look for 'OBD2' on written on a big white label in your engine bay. The app needs an ELM compatible Bluetooth Low Energy (for iPhone4s and later) or Wi-Fi adapter to work. You can check Developer WebSite for Adapter Guide: http://www.outdoor-apps.com/enginelink.html *** If you have Bluetooth OBD adaptor, please contact support@ksolution.org for instruction before you purchase this app. Drop us an email for any suggestions/questions you may have at support@ksolution.org. We will answer.

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.

Screenshots

Engine Link4 screens
OBD2 Trouble Code4 screens

Verdict

The call

The clearest difference is price: OBD2 Trouble Code at Free against Engine Link's $5.99. OBD2 Trouble Code also leads on rating (3.3 vs 2.9) and ratings volume (306 vs 62). On review sentiment, ads, in-app purchases and monetization model 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

OBD2 Trouble Code is free to download; Engine Link costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OBD2 Trouble Code holds the better App Store score, 3.3 against 2.9. Both are backed by a comparable volume of ratings — 62 and 306 respectively. Written reviews complicate that: 38% of Engine Link's written reviews are positive against 37% of OBD2 Trouble Code's, so the app with the better star average is not the one people write more warmly about.

Scorecard4 real differences · 6 level
Engine Link versus OBD2 Trouble Code: the parameters behind the verdict, then further details
ParameterEngine LinkOBD2 Trouble Code
Price$5.99Free — better
Rating2.9 (62 ratings)3.3 (306 ratings) — better
Positive reviews38.2% of reviews — better37.0% of reviews
Number of ratings62306 — better
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.010.0 — better
Further details — not scored
Size10 MB24 MB
Age rating4+4+
DeveloperK SOLUTION LLCHassan Benessafi

Customer experience

Engine Link

All ratings62 ratings
Positive45.2%
Neutral6.5%
Negative48.4%
Written reviews204 reviews
Positive38.2%
Neutral9.8%
Negative52.0%

OBD2 Trouble Code

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

User reviews

Engine Link

From 62 App Store ratings

What we love

  • 🚀 Works as expected
  • 👍 Flexible and customizable
  • 💡 Supports custom PIDs
  • 🚀 Reliable connection
  • 👍 Good customer support

Room to improve

  • 🐛 Doesn't work with all OBD dongles
  • 🐛 Compatibility issues with newer iOS versions
  • 👎 Outdated and clunky interface
  • 👎 Limited functionality for EVs
  • 🐛 Connectivity problems

OBD2 Trouble Code

From 306 App Store ratings

What we love

  • 📚 Comprehensive OBD code database
  • 👍 Easy to navigate interface
  • 💡 Helpful for understanding car diagnostic codes
  • ⚡ Useful for mechanical troubleshooting

Room to improve

  • 😤 Forced review requirement before app usage
  • 📺 Excessive ads throughout the app
  • 🔋 High battery consumption
  • 🚫 App won't function without review completion
  • ⚠️ Misleading review-gating mechanism

Bugs and requests

Engine Link

Reported bugs

4 issues
  • App crashes on connection
  • Fails to read/clear error codes
  • Inaccurate sensor readings
  • Compatibility issues with certain OBD dongles

Requested features

5 requests
  • Add support for more vehicle types
  • Improve user interface and customization options
  • Add more PID support, especially for EVs
  • Implement language localization
  • Improve data logging and export capabilities

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

In-app purchases

None

Engine Link

No in-app purchases

None

OBD2 Trouble Code

No in-app purchases

Questions

Is Engine Link free?
Engine Link costs $5.99, with no in-app purchases.
Is OBD2 Trouble Code free?
OBD2 Trouble Code is free to download, with no in-app purchases.
Which has better reviews, Engine Link or OBD2 Trouble Code?
OBD2 Trouble Code is rated higher. Engine Link averages 2.9 out of 5 from 62 ratings, while OBD2 Trouble Code averages 3.3 from 306 ratings.
Do Engine Link or OBD2 Trouble Code have ads?
Neither Engine Link nor OBD2 Trouble Code shows ads.

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