# Engine Link vs OBD2 Trouble Code

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.

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.

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.

## The numbers

| Metric | Engine Link | OBD2 Trouble Code |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | [2.9 (62 ratings)](https://appshunter.io/ios/app/engine-link-obd-ii-diagnosis/id591557194/reviews) | **[3.3 (306 ratings)](https://appshunter.io/ios/app/obd2-trouble-code/id1315353058/reviews)** |
| Number of ratings | 62 | **306** |
| Positive reviews | **38.2% of reviews** | 37.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | Free |
| Size | 10 MB | 24 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [K SOLUTION LLC](https://appshunter.io/developer/289670447) | [Hassan Benessafi](https://appshunter.io/developer/1463795701) |

## What reviewers say

### Engine Link

[App page](https://appshunter.io/ios/app/engine-link-obd-ii-diagnosis/id591557194)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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- 👎 Outdated and clunky interface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

**Reported bugs**

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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/obd2-trouble-code/id1315353058)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

- 😤 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

**Reported bugs**

- 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)

**Requested features**

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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*