# Car Scanner ELM OBD2 vs OBD2 Trouble Code

The clearest difference is review sentiment: Car Scanner ELM OBD2 at 81% against OBD2 Trouble Code's 37%. Car Scanner ELM OBD2 also leads on rating (4.8 vs 3.3) and ratings volume (32K vs 306). OBD2 Trouble Code's advantage is in-app purchases (none vs 5) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Car Scanner ELM OBD2 sells 5 in-app purchases, starting at $3.99 per 6 months. OBD2 Trouble Code asks for nothing beyond the download.

Car Scanner ELM OBD2 holds the better App Store score, 4.8 against 3.3. That said, the two scores are not equally well evidenced: Car Scanner ELM OBD2 has 32K ratings behind it against 306, so its average is the more settled of the two. Written reviews point the same way: 81% of Car Scanner ELM OBD2's written reviews are positive against 37% of OBD2 Trouble Code's.

## The numbers

| Metric | Car Scanner ELM OBD2 | OBD2 Trouble Code |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (32K ratings)](https://appshunter.io/ios/app/car-scanner-elm-obd2/id1259933623/reviews)** | [3.3 (306 ratings)](https://appshunter.io/ios/app/obd2-trouble-code/id1315353058/reviews) |
| Number of ratings | **32K** | 306 |
| Positive reviews | **81.4% of reviews** | 37.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 168 MB | 24 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stanislav Svistunov](https://appshunter.io/developer/1259933622) | [Hassan Benessafi](https://appshunter.io/developer/1463795701) |

## What reviewers say

### Car Scanner ELM OBD2

[App page](https://appshunter.io/ios/app/car-scanner-elm-obd2/id1259933623)

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.

**Highlights:** Real-time sensor data, OBD fault code reading and resetting, Customizable dashboard with gauges, Extended PID support, Mode 06 test results, Emission test readiness check, Acceleration measurement tool

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Car Scanner Pro (6 months) | $3.99 | per 6 months |
| Car Scanner Pro (1 year) | $4.99 | per year |
| Car Scanner Pro (low price) | $6.99 | one-time |
| Car Scanner Pro (mid price) | $6.99 | one-time |
| Car Scanner Pro (forever) | $7.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

- 🐛 Occasional connection issues
- 🐛 Incorrect sensor readings for some vehicles
- 🐛 Crashes or freezes on some devices
- 🔋 Drains battery when left running

**Reported bugs**

- Unable to connect to certain vehicle models
- Incorrect fuel economy calculations
- Sensor data not updating properly in some cases

**Requested features**

- Add support for more vehicle profiles
- Improve CarPlay integration
- Allow custom dashboard templates
- Add option to automatically save data logs
- Expand sensor coverage, especially for transmissions and ABS


### 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 Car Scanner ELM OBD2 free?

Car Scanner ELM OBD2 is free to download, with in-app purchases available.

### Is OBD2 Trouble Code free?

OBD2 Trouble Code is free to download, with no in-app purchases.

### Which has better reviews, Car Scanner ELM OBD2 or OBD2 Trouble Code?

Car Scanner ELM OBD2 is rated higher. Car Scanner ELM OBD2 averages 4.8 out of 5 from 32K ratings, while OBD2 Trouble Code averages 3.3 from 306 ratings.

### Do Car Scanner ELM OBD2 or OBD2 Trouble Code have ads?

Car Scanner ELM OBD2 shows ads; OBD2 Trouble Code does not.

---

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