# HARMONY DSP vs EL

The clearest difference is update cadence: EL at daily against HARMONY DSP's every 19 months. 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, EL daily. The most recent releases landed on May 16, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | HARMONY DSP | EL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Daily** |
| Size | 3 MB | 3 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APEX Italy](https://appshunter.io/developer/1446565085) | [Rainbow Audio GmbH](https://appshunter.io/developer/1284821198) |

## What reviewers say

### HARMONY DSP

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

**Features:** macOS Compatibility

**In-app purchases:** none


### EL

[App page](https://appshunter.io/ios/app/el-ap300d-neo/id6473819489)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HARMONY DSP free?

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

### Is EL free?

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

### Do HARMONY DSP or EL have ads?

Neither HARMONY DSP nor EL shows ads.

### Which is updated more often, HARMONY DSP or EL?

HARMONY DSP ships an update every 19 months, and EL daily. Most recently, HARMONY DSP was updated on May 16, 2026 and EL on September 10, 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.*