# OBD Pro vs Dauntless OBD

The clearest difference is review sentiment: Dauntless OBD at 100% against OBD Pro's 0%. Dauntless OBD also leads on rating (5.0 vs 2.0) and ratings volume (11 vs 1). OBD Pro's advantage is iOS requirement (7.0 vs 15.0). 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.

Dauntless OBD holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Dauntless OBD has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of OBD Pro's written reviews are positive against 100% of Dauntless OBD's.

OBD Pro ships an update monthly, Dauntless OBD every 3 weeks. The most recent releases landed on September 27, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | OBD Pro | Dauntless OBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/obd-pro/id1063199690/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/dauntless-obd/id6467540766/reviews)** |
| Number of ratings | 1 | **11** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 10 MB | 2 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [Dauntless Devices LLC](https://appshunter.io/developer/1706964112) |

## What reviewers say

### OBD Pro

[App page](https://appshunter.io/ios/app/obd-pro/id1063199690)

This application helps users diagnose vehicle issues by monitoring various car systems and components. It provides insights into engine performance, emissions, and other critical parts to help owners understand and address potential problems.

**Highlights:** Vehicle condition monitoring, Car diagnostics, Engine system analysis, Catalytic converter monitoring, Oxygen sensor readings, Emission control system checks, Fuel system analysis

**In-app purchases:** none


### Dauntless OBD

[App page](https://appshunter.io/ios/app/dauntless-obd/id6467540766)

Configure your DauntlessOBD device wirelessly. Access vehicle data streams, diagnostic trouble codes, and manage firmware updates. Requires a DauntlessOBD device for full functionality.

**Highlights:** Wireless pairing, Firmware updates, Vehicle data streams, Diagnostic trouble codes, Device configuration

**In-app purchases:** none


## Frequently asked questions

### Is OBD Pro free?

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

### Is Dauntless OBD free?

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

### Which has better reviews, OBD Pro or Dauntless OBD?

Dauntless OBD is rated higher. OBD Pro averages 2.0 out of 5 from 1 ratings, while Dauntless OBD averages 5.0 from 11 ratings.

### Do OBD Pro or Dauntless OBD have ads?

Neither OBD Pro nor Dauntless OBD shows ads.

### Which is updated more often, OBD Pro or Dauntless OBD?

OBD Pro ships an update monthly, and Dauntless OBD every 3 weeks. Most recently, OBD Pro was updated on September 27, 2026 and Dauntless OBD on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*