# ETON DSPcontrol vs HARMONY DSP

The clearest difference is update cadence: ETON DSPcontrol at every 3 months against HARMONY DSP's every 19 months. ETON DSPcontrol also leads on iOS requirement (9.0 vs 11.0). 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.

ETON DSPcontrol ships an update every 3 months, HARMONY DSP every 19 months. The most recent releases landed on June 25, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | ETON DSPcontrol | HARMONY DSP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/eton-dspcontrol/id1476027002/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | Free | — |
| Size | 14 MB | 3 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ETON Car-Audio GmbH](https://appshunter.io/developer/1541905591) | [APEX Italy](https://appshunter.io/developer/1446565085) |

## What reviewers say

### ETON DSPcontrol

[App page](https://appshunter.io/ios/app/eton-dspcontrol/id1476027002)

This application provides comprehensive control over your ETON DSP device. Easily create custom sound presets, adjust equalizer settings, time delay, phase shift, and stream audio directly from your smartphone or tablet within your vehicle.

**Highlights:** Create custom sound presets, Full DSP control, Graphical user interface, Integrated Equalizer, Time-Delay adjustment, Phase-Shift control, Audio streaming

**Features:** macOS Compatibility

**In-app purchases:** none


### HARMONY DSP

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ETON DSPcontrol free?

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

### Is HARMONY DSP free?

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

### Do ETON DSPcontrol or HARMONY DSP have ads?

Neither ETON DSPcontrol nor HARMONY DSP shows ads.

### Which is updated more often, ETON DSPcontrol or HARMONY DSP?

ETON DSPcontrol ships an update every 3 months, and HARMONY DSP every 19 months. Most recently, ETON DSPcontrol was updated on June 25, 2026 and HARMONY DSP on May 16, 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.*