# VINwiki vs Ediag

The clearest difference is rating: VINwiki at 4.8 against Ediag's 4.3. VINwiki also leads on review sentiment (63% vs 30%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

VINwiki holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 4.1K and 1.5K respectively. Written reviews point the same way: 63% of VINwiki's written reviews are positive against 30% of Ediag's.

VINwiki ships an update monthly, Ediag every 2 months. Both last shipped on October 20, 2026.

## The numbers

| Metric | VINwiki | Ediag |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4.1K ratings)](https://appshunter.io/ios/app/vinwiki/id1097335368/reviews)** | [4.3 (1.5K ratings)](https://appshunter.io/ios/app/ediag/id6444249245/reviews) |
| Number of ratings | **4.1K** | 1.5K |
| Positive reviews | **62.5% of reviews** | 29.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 12 MB | 455 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [VINwiki, Inc.](https://appshunter.io/developer/1097335367) | [Shenzhen Kingbolen Electrics Technology Co., Ltd.](https://appshunter.io/developer/1653350029) |

## What reviewers say

### VINwiki

[App page](https://appshunter.io/ios/app/vinwiki/id1097335368)

Document your vehicle's complete history, including maintenance, upgrades, and mileage. Share your car's story with photos and service records to build its value. Follow friends' cars and see their automotive journeys.

**Highlights:** Create vehicle history reports, Contribute to vehicle histories, Curate vehicle history reports, Add photos and mileage updates, Document service records, Track car maintenance and upgrades, Follow friends' car journeys

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Great community
- 👍 Useful for car enthusiasts
- 💡 Innovative concept
- 👍 Helpful for car history research
- 👍 Easy to use

**What reviewers complain about**

- 🐛 Buggy and unstable
- 🔧 Needs major updates and improvements
- 🔧 Lacking key features
- 🔧 Poor user interface
- 🔧 Unreliable data

**Reported bugs**

- Login and registration issues
- Posts and data disappearing
- Inability to view personal posts and history
- Compatibility problems with newer iOS versions

**Requested features**

- Add ability to edit and delete posts
- Implement push notifications
- Improve search and filtering functionality
- Add support for international users and vehicles
- Optimize for iPad and larger screens


### Ediag

[App page](https://appshunter.io/ios/app/ediag/id6444249245)

Perform comprehensive vehicle diagnostics, including reading data flow, fault codes, and vehicle information. Generate professional diagnostic reports for major automobile manufacturers. Features one-key diagnosis and automatic VIN reading.

**Highlights:** Full-function diagnosis, Read data flow, Read/clear fault code, Read vehicle information, Automatic VIN reading, Diagnostic reports

**In-app purchases:** none

**What reviewers like**

- ✅ Comprehensive diagnostic information and functionality
- 🎯 Works well for specific vehicle models (Chevy, Acura, etc.)
- 💪 Advanced features like glow plug programming and ECU coding
- 📱 Helpful AI and YouTube integration for guidance
- 🔧 Good value for price compared to expensive scan tools

**What reviewers complain about**

- 💰 Hidden subscription fees for special functions ($19.99 each)
- 🐛 App crashes frequently after updates
- ❌ Poor vehicle compatibility with newer models (2023+)
- 🔐 Requires location data and network connectivity
- 😕 Confusing user interface and unclear section titles

**Reported bugs**

- App crashes after latest update
- Activation fails with correct codes (used devices)
- Communication errors during diagnostics
- VIN finder doesn't work well for older cars
- First-day connection issues requiring account reset

**Requested features**

- Support for newer vehicle models (2023+)
- Better auto-identification for Ford and other manufacturers
- Language settings menu (Turkish language support mentioned)
- Ability to command multiple functions from same test screen
- Improved VIN finder for older vehicles (1990s-2000s)


## Frequently asked questions

### Is VINwiki free?

VINwiki is free to download, with no in-app purchases.

### Is Ediag free?

Ediag is free to download, with no in-app purchases.

### Which has better reviews, VINwiki or Ediag?

VINwiki is rated higher. VINwiki averages 4.8 out of 5 from 4.1K ratings, while Ediag averages 4.3 from 1.5K ratings.

### Do VINwiki or Ediag have ads?

Neither VINwiki nor Ediag shows ads.

### Which is updated more often, VINwiki or Ediag?

VINwiki ships an update monthly, and Ediag every 2 months. Most recently, VINwiki was updated on October 20, 2026 and Ediag on October 20, 2026.

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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.*