# موسوعة أعطال السيارات OBD 2 vs Carmin

The clearest difference is in-app purchases: موسوعة أعطال السيارات OBD 2 at none against Carmin's 2. موسوعة أعطال السيارات OBD 2 also leads on ads (none vs shown) and rating (4.5 vs 4.3). Carmin's advantage is update cadence (every 5 weeks vs every 28 months) and review sentiment (55% vs 43%). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Carmin sells 2 in-app purchases, starting at $4.99 per month. موسوعة أعطال السيارات OBD 2 asks for nothing beyond the download.

موسوعة أعطال السيارات OBD 2 holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Carmin has 223 ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 43% of موسوعة أعطال السيارات OBD 2's written reviews are positive against 55% of Carmin's, so the app with the better star average is not the one people write more warmly about.

موسوعة أعطال السيارات OBD 2 ships an update every 28 months, Carmin every 5 weeks. The most recent releases landed on September 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | موسوعة أعطال السيارات OBD 2 | Carmin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (25 ratings)](https://appshunter.io/ios/app/obd-2/id1378019983/reviews)** | [4.3 (223 ratings)](https://appshunter.io/ios/app/carmin/id1527982107/reviews) |
| Number of ratings | 25 | **223** |
| Positive reviews | 42.9% of reviews | **55.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 28 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 38 MB | 18 MB |
| Requires iOS | **11.0** | 12 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EDDAOUDI Zineb](https://appshunter.io/developer/1378016040) | [Chuan Nguyen Van](https://appshunter.io/developer/1527982109) |

## What reviewers say

### موسوعة أعطال السيارات OBD 2

[App page](https://appshunter.io/ios/app/obd-2/id1378019983)

Diagnose your car's problems yourself and understand the source of the issue. This app helps you identify malfunctions, preventing exploitation at repair shops and empowering you with knowledge about your vehicle's needs.

**Highlights:** Diagnose car faults, Identify fault sources, Prevent repair shop exploitation, Understand vehicle malfunctions, Modern car fault codes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Carmin

[App page](https://appshunter.io/ios/app/carmin/id1527982107)

Access a comprehensive library of regularly updated automotive electrical wiring diagrams for car repair and study.  Includes videos and technical documents for research and reference.

**Highlights:** Electrical wiring diagrams, Regularly updated diagrams, Videos library, Technical documents, Car repair reference, Study purposes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $49.99 | per year |

**What reviewers like**

- 📚 Comprehensive vehicle diagram database
- 💰 Free version available with good content
- 🎯 Helpful for car diagnostics and repairs
- ⚡ Quick access to wiring information
- 🌍 Supports multiple vehicle brands and models

**What reviewers complain about**

- 📺 Excessive advertisements in free version
- 🐛 Frequent app crashes and instability on iOS
- 🚫 Limited vehicle coverage (missing years and models)
- 🔤 Diagrams display as code/symbols instead of images
- 🌐 Language limitations (primarily English)

**Reported bugs**

- App crashes when opening diagrams on iOS
- App only opens one diagram per session before crashing
- Requires reinstallation to function properly
- Diagrams display as code/hieroglyphics instead of images
- Crashes on iOS 15, 16, and 17

**Requested features**

- Search functionality by make/model/year
- Alphabetical sorting of vehicles
- Favorites/bookmarks for frequently used diagrams
- Wiring color codes display
- Ability to isolate specific wiring for clarity


## Frequently asked questions

### Is موسوعة أعطال السيارات OBD 2 free?

موسوعة أعطال السيارات OBD 2 is free to download, with no in-app purchases.

### Is Carmin free?

Carmin is free to download, with in-app purchases available.

### Which has better reviews, موسوعة أعطال السيارات OBD 2 or Carmin?

موسوعة أعطال السيارات OBD 2 is rated higher. موسوعة أعطال السيارات OBD 2 averages 4.5 out of 5 from 25 ratings, while Carmin averages 4.3 from 223 ratings.

### Do موسوعة أعطال السيارات OBD 2 or Carmin have ads?

Carmin shows ads; موسوعة أعطال السيارات OBD 2 does not.

### Which is updated more often, موسوعة أعطال السيارات OBD 2 or Carmin?

موسوعة أعطال السيارات OBD 2 ships an update every 28 months, and Carmin every 5 weeks. Most recently, موسوعة أعطال السيارات OBD 2 was updated on September 18, 2026 and Carmin on October 16, 2026.

---

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