# Memphis True DSP vs HARMONY DSP

The clearest difference is update cadence: Memphis True DSP at weekly against HARMONY DSP's every 19 months. Memphis True DSP 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.

Memphis True DSP ships an update weekly, HARMONY DSP every 19 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Memphis True DSP | HARMONY DSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 19 months |
| Size | 9 MB | 3 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AFCO INC](https://appshunter.io/developer/1059278320) | [APEX Italy](https://appshunter.io/developer/1446565085) |

## What reviewers say

### Memphis True DSP

[App page](https://appshunter.io/ios/app/memphis-true-dsp/id1589732095)

**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 Memphis True DSP free?

Memphis True DSP 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 Memphis True DSP or HARMONY DSP have ads?

Neither Memphis True DSP nor HARMONY DSP shows ads.

### Which is updated more often, Memphis True DSP or HARMONY DSP?

Memphis True DSP ships an update weekly, and HARMONY DSP every 19 months. Most recently, Memphis True DSP was updated on October 6, 2026 and HARMONY DSP on October 3, 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.*