# Carista OBD2 vs OBD2 Trouble Code

The clearest difference is rating: Carista OBD2 at 4.6 against OBD2 Trouble Code's 3.3. Carista OBD2 also leads on ratings volume (4.1K vs 306) and chart position (#169 vs unranked). OBD2 Trouble Code's advantage is in-app purchases (none vs 14) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.

Both are free to download. Carista OBD2 sells 6 in-app purchases, starting at $19.99 per month. OBD2 Trouble Code asks for nothing beyond the download.

Carista OBD2 holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: Carista OBD2 has 4.1K ratings behind it against 306, so its average is the more settled of the two. Written reviews complicate that: 34% of Carista OBD2'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 | Carista OBD2 | OBD2 Trouble Code |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (4.1K ratings)](https://appshunter.io/ios/app/carista-obd2/id954363569/reviews)** | [3.3 (306 ratings)](https://appshunter.io/ios/app/obd2-trouble-code/id1315353058/reviews) |
| Number of ratings | **4.1K** | 306 |
| Positive reviews | 34.2% 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** |
| Best chart rank | **#169** | — |
| Size | 132 MB | 24 MB |
| Requires iOS | 16.4 | **10.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Prizmos](https://appshunter.io/developer/954363568) | [Hassan Benessafi](https://appshunter.io/developer/1463795701) |

## What reviewers say

### Carista OBD2

[App page](https://appshunter.io/ios/app/carista-obd2/id954363569)

**Currently charting:** #169 Top Grossing · Utilities (US App Store)

This app acts as a DIY car mechanic, allowing you to customize features, diagnose warning lights, monitor live data, and perform maintenance. Save time and money by handling common car tasks yourself.

**Highlights:** Customize car behavior and unlock hidden features, Diagnose and reset dashboard warning lights, Monitor real-time vehicle parameters, Perform simple DIY car maintenance procedures, Access advanced electronic diagnostics

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $19.99 | per month |
| Pro | $19.99 | per month |
| 1 month Pro | $19.99 | per month |
| 3 month Pro | $29.99 | per 3 months |
| Pro | $59.99 | per year |
| One-Time Diagnostic & Reset | $9.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Customization options
- 🚀 Efficient diagnostics
- 💡 Helpful for maintenance
- 👍 Great customer support

**What reviewers complain about**

- 💰 Expensive subscription
- 🔒 Requires account login
- 🐛 Connectivity issues
- 🔒 Locked features behind paywall
- 🐛 Unreliable functionality

**Reported bugs**

- App crashes and freezes
- Subscription issues and billing problems
- Incompatibility with certain OBD2 adapters
- Customization features not working as expected
- Inaccurate fault code detection

**Requested features**

- Support for more vehicle makes and models
- Offline diagnostics and customization
- Ability to save customization settings
- More detailed error code information
- Improved user interface and navigation


### 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 Carista OBD2 free?

Carista 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, Carista OBD2 or OBD2 Trouble Code?

Carista OBD2 is rated higher. Carista OBD2 averages 4.6 out of 5 from 4.1K ratings, while OBD2 Trouble Code averages 3.3 from 306 ratings.

### Do Carista OBD2 or OBD2 Trouble Code have ads?

Carista OBD2 shows ads; OBD2 Trouble Code does not.

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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.*