# B1W vs Ediag

The clearest difference is rating: Ediag at 4.3 against B1W's 2.1. Ediag also leads on ratings volume (1.6K vs 43) and review sentiment (30% vs 13%). B1W's advantage is iOS requirement (12.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Ediag holds the better App Store score, 4.3 against 2.1. That said, the two scores are not equally well evidenced: Ediag has 1.6K ratings behind it against 43, so its average is the more settled of the two. Written reviews point the same way: 13% of B1W's written reviews are positive against 30% of Ediag's.

B1W ships an update monthly, Ediag every 2 months. The most recent releases landed on October 21, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | B1W | Ediag |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (43 ratings)](https://appshunter.io/ios/app/b1w-cardvr/id1294583121/reviews) | **[4.3 (1.6K ratings)](https://appshunter.io/ios/app/ediag/id6444249245/reviews)** |
| Number of ratings | 43 | **1.6K** |
| Positive reviews | 12.6% of reviews | **29.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 43 MB | 455 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [树 贝](https://appshunter.io/developer/616011285) | [Shenzhen Kingbolen Electrics Technology Co., Ltd.](https://appshunter.io/developer/1653350029) |

## What reviewers say

### B1W

[App page](https://appshunter.io/ios/app/b1w-cardvr/id1294583121)

Control your CDV04 video recorder remotely using your smart device. Access features like live preview, photo album viewing, setup adjustments, and file management.

**Highlights:** Remote viewfinder/preview, View photo album, Setup adjustments, Take photos, Record video, File delete/download, Playback recordings

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Dashcam works well
- 👍 Simple setup (sometimes)
- 👍 Good clarity
- 👍 Discreet design
- 👍 Wide angle capture

**What reviewers complain about**

- ❌ Does not connect to dash cam
- ❌ App no longer works
- ❌ Does not work with iOS 18
- ❌ Internet not available error
- ❌ WiFi goes away

**Reported bugs**

- App won't connect to dash cam
- App no longer works
- Incompatible with iOS 18
- Shows 'internet not available'
- WiFi connection drops

**Requested features**

- Software update for connectivity
- Add dark mode
- Add multi-download for videos
- Improve app interface
- Add English menu


### 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 B1W free?

B1W 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, B1W or Ediag?

Ediag is rated higher. B1W averages 2.1 out of 5 from 43 ratings, while Ediag averages 4.3 from 1.6K ratings.

### Do B1W or Ediag have ads?

Neither B1W nor Ediag shows ads.

### Which is updated more often, B1W or Ediag?

B1W ships an update monthly, and Ediag every 2 months. Most recently, B1W was updated on October 21, 2026 and Ediag on October 27, 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.*