# OBD Mate vs DND

The clearest difference is review sentiment: DND at 100% against OBD Mate's 9%. DND also leads on rating (5.0 vs 1.8) and update cadence (every 8 days vs every 5 weeks). OBD Mate's advantage is ratings volume (115 vs 1) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

DND holds the better App Store score, 5.0 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 100% of DND's.

OBD Mate ships an update every 5 weeks, DND every 8 days. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | OBD Mate | DND |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (115 ratings)](https://appshunter.io/ios/app/obd-mate/id1405374762/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dnd/id6451104638/reviews)** |
| Number of ratings | **115** | 1 |
| Positive reviews | 9.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | Free | Free |
| Size | 365 MB | 339 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Autophix Tech Co., Ltd](https://appshunter.io/developer/650288249) | [MATL TECH INC.](https://appshunter.io/developer/1735263917) |

## 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


### DND

[App page](https://appshunter.io/ios/app/dnd/id6451104638)

This tool helps you understand your vehicle's health and diagnose issues. It provides comprehensive diagnostic services, maintenance guidance, and real-time sensor data monitoring, making car care accessible even for beginners.

**Highlights:** OBD functionality, Enhanced diagnosis, Vehicle maintenance guidance, Locate malfunction causes, AI services, Abnormal warnings, Real-time sensor data monitoring

**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 DND free?

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

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

DND is rated higher. OBD Mate averages 1.8 out of 5 from 115 ratings, while DND averages 5.0 from 1 ratings.

### Do OBD Mate or DND have ads?

Neither OBD Mate nor DND shows ads.

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

OBD Mate ships an update every 5 weeks, and DND every 8 days. Most recently, OBD Mate was updated on September 24, 2026 and DND on September 17, 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.*