# Dauntless OBD vs PZ

The clearest difference is update cadence: Dauntless OBD at every 3 weeks against PZ's every 12 months. Dauntless OBD also leads on ratings volume (12 vs 1). PZ's advantage is iOS requirement (9.0 vs 15.0). On price, rating, review sentiment 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 — 5.0 for Dauntless OBD against 5.0 for PZ. That said, the two scores are not equally well evidenced: Dauntless OBD has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Dauntless OBD ships an update every 3 weeks, PZ every 12 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Dauntless OBD | PZ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (12 ratings)](https://appshunter.io/ios/app/dauntless-obd/id6467540766/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pz-c7/id6630366976/reviews) |
| Number of ratings | **12** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 12 months |
| Monetization | Free | Free |
| Size | 2 MB | 2 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dauntless Devices LLC](https://appshunter.io/developer/1706964112) | [huizhou shangshui technology co.,ltd](https://appshunter.io/developer/1762340195) |

## What reviewers say

### 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


### PZ

[App page](https://appshunter.io/ios/app/pz-c7/id6630366976)

This application provides advanced audio tuning for car amplifiers, featuring plug-and-play installation and powerful DSP processing. It allows for precise adjustments to sound fields, equalization, and dynamic music processing via a smartphone interface.

**Highlights:** Plug & play installation, Quad-core 32-bit DSP processing, Lossless audio playback, 15-band EQ tuning, Adjustable sound field delay, Built-in Bluetooth for music streaming, Smartphone control

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

**In-app purchases:** none


## Frequently asked questions

### Is Dauntless OBD free?

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

### Is PZ free?

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

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

Dauntless OBD and PZ are both rated 5.0 out of 5 on the App Store, from 12 and 1 ratings respectively.

### Do Dauntless OBD or PZ have ads?

Neither Dauntless OBD nor PZ shows ads.

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

Dauntless OBD ships an update every 3 weeks, and PZ every 12 months. Most recently, Dauntless OBD was updated on October 24, 2026 and PZ on October 24, 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.*