# A894DSP vs PZ

A894DSP and PZ are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | A894DSP | PZ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/pz-x4800s/id6736720956/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | — | Free |
| Size | 18 MB | 2 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杏生 卢](https://appshunter.io/developer/1094592555) | [huizhou shangshui technology co.,ltd](https://appshunter.io/developer/1762340195) |

## What reviewers say

### A894DSP

[App page](https://appshunter.io/ios/app/a894dsp/id6479791591)

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

**In-app purchases:** none


### PZ

[App page](https://appshunter.io/ios/app/pz-x4800s/id6736720956)

This utility enhances your car's audio system with a non-destructive plug-and-play DSP amplifier. It features advanced processing for dynamic music, precise EQ tuning, and spatial editing, all controllable via smartphone.

**Highlights:** Non-destructive plug & play installation, Quad-core 32-bit DSP processing, DRC dynamic music processing, 31-band EQ tuning system, Adjustable sound field delay, Built-in Bluetooth for lossless music, Smartphone control for Time-Delay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A894DSP free?

A894DSP is free to download, with no in-app purchases.

### Is PZ free?

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

### Do A894DSP or PZ have ads?

Neither A894DSP nor PZ shows ads.

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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.*