# Ediag vs GWSCAN

Ediag and GWSCAN both sit at 4.3 stars, but that hides the real split: 68% of GWSCAN's written reviews are positive against 30% of Ediag's. GWSCAN also leads on iOS requirement (12.0 vs 15.6). Ediag's advantage is monetization model (free vs paid) and ratings volume (1.5K vs 83). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.3 for Ediag against 4.3 for GWSCAN. That said, the two scores are not equally well evidenced: Ediag has 1.5K ratings behind it against 83, so its average is the more settled of the two. Written reviews are what separate them: 30% of Ediag's written reviews are positive against 68% of GWSCAN's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Ediag | GWSCAN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (1.5K ratings)](https://appshunter.io/ios/app/ediag/id6444249245/reviews) | **[4.3 (83 ratings)](https://appshunter.io/ios/app/gwscan/id6484502290/reviews)** |
| Number of ratings | **1.5K** | 83 |
| Positive reviews | 29.6% of reviews | **67.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Paid |
| Size | 455 MB | 492 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Shenzhen Kingbolen Electrics Technology Co., Ltd.](https://appshunter.io/developer/1653350029) | [Apex Tool Group](https://appshunter.io/developer/1401209994) |

## What reviewers say

### 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)


### GWSCAN

[App page](https://appshunter.io/ios/app/gwscan/id6484502290)

Unlock advanced vehicle diagnostics and maintenance insights. This tool helps you understand your car's systems, read and clear trouble codes, and monitor live engine data. Ideal for vehicle owners seeking professional-level insights without the dealership cost.

**Highlights:** OBDII Diagnostics, In-depth system scans, Live engine data monitoring, Maintenance light reset, Scan and clear DTCs

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

**In-app purchases:** none


## Frequently asked questions

### Is Ediag free?

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

### Is GWSCAN free?

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

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

GWSCAN is rated higher. Ediag averages 4.3 out of 5 from 1.5K ratings, while GWSCAN averages 4.3 from 83 ratings.

### Do Ediag or GWSCAN have ads?

Neither Ediag nor GWSCAN shows ads.

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

Ediag ships an update every 2 months, and GWSCAN every 2 months. Most recently, Ediag was updated on October 20, 2026 and GWSCAN on October 18, 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.*