# HARMONY DSP vs AUDIO DSP Control

The clearest difference is update cadence: AUDIO DSP Control at every 3 months against HARMONY DSP's every 19 months. HARMONY DSP's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

HARMONY DSP ships an update every 19 months, AUDIO DSP Control every 3 months. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | HARMONY DSP | AUDIO DSP Control |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 3 MB | 12 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APEX Italy](https://appshunter.io/developer/1446565085) | [长猛 周](https://appshunter.io/developer/1689008478) |

## What reviewers say

### HARMONY DSP

[App page](https://appshunter.io/ios/app/harmony-dsp/id1638244924)

**Features:** macOS Compatibility

**In-app purchases:** none


### AUDIO DSP Control

[App page](https://appshunter.io/ios/app/audio-dsp-control/id6450451317)

Control your car's audio system directly from your mobile device. View player information, manage music playback, and adjust sound effects with an intuitive interface. Offers convenient one-button switching and real-time positioning.

**Highlights:** Car player button control, View car player function information, Intuitive radio interface, USB/SD player with ID3 info, Bluetooth music playback, One-button car player switch, Sound effect adjustment, Real-time positioning

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

**In-app purchases:** none


## Frequently asked questions

### Is HARMONY DSP free?

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

### Is AUDIO DSP Control free?

AUDIO DSP Control is free to download, with no in-app purchases.

### Do HARMONY DSP or AUDIO DSP Control have ads?

Neither HARMONY DSP nor AUDIO DSP Control shows ads.

### Which is updated more often, HARMONY DSP or AUDIO DSP Control?

HARMONY DSP ships an update every 19 months, and AUDIO DSP Control every 3 months. Most recently, HARMONY DSP was updated on October 27, 2026 and AUDIO DSP Control on October 9, 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.*