# OBD Mate vs Viecar

The clearest difference is rating: Viecar at 4.0 against OBD Mate's 1.8. Viecar also leads on review sentiment (20% vs 9%) and iOS requirement (9.0 vs 13.0). OBD Mate's advantage is ratings volume (115 vs 1). 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.

Viecar holds the better App Store score, 4.0 against 1.8. That said, the two scores are not equally well evidenced: OBD Mate has 115 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 9% of OBD Mate's written reviews are positive against 20% of Viecar's.

OBD Mate ships an update every 5 weeks, Viecar every 4 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | OBD Mate | Viecar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (115 ratings)](https://appshunter.io/ios/app/obd-mate/id1405374762/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/viecar/id1474737022/reviews)** |
| Number of ratings | **115** | 1 |
| Positive reviews | 9.4% of reviews | **20.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 365 MB | 39 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Autophix Tech Co., Ltd](https://appshunter.io/developer/650288249) | [Shenzhen Chaoyue Technology Development Co.,Ltd](https://appshunter.io/developer/1223781320) |

## What reviewers say

### OBD Mate

[App page](https://appshunter.io/ios/app/obd-mate/id1405374762)

Diagnose vehicle faults and receive driving assistance using your smartphone or tablet. Connect via Bluetooth to read and clear error codes, monitor sensor data, and view custom dashboards for a better driving experience.

**Highlights:** Fault diagnosis, Driving assistance, Read and clear codes, Freeze frame data, O2 sensor monitoring, Customizable dashboard

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

**In-app purchases:** none


### Viecar

[App page](https://appshunter.io/ios/app/viecar/id1474737022)

This app connects to your vehicle's ECU via Bluetooth to perform comprehensive diagnostics and health checks. It helps identify potential issues early, analyze fuel consumption, and track driving behavior for improved efficiency and safety.

**Highlights:** 360° vehicle physical examination, Early detection of vehicle sub-health, Historical fuel consumption analysis, Driving behavior recording and analysis, Bluetooth 4.0 dual-mode connectivity, Low power consumption

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBD Mate free?

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

### Is Viecar free?

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

### Which has better reviews, OBD Mate or Viecar?

Viecar is rated higher. OBD Mate averages 1.8 out of 5 from 115 ratings, while Viecar averages 4.0 from 1 ratings.

### Do OBD Mate or Viecar have ads?

Neither OBD Mate nor Viecar shows ads.

### Which is updated more often, OBD Mate or Viecar?

OBD Mate ships an update every 5 weeks, and Viecar every 4 weeks. Most recently, OBD Mate was updated on November 2, 2026 and Viecar on November 3, 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.*