# M vs DSP

The clearest difference is update cadence: DSP at daily against M's monthly. M's advantage is iOS requirement (8.0 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.

M ships an update monthly, DSP daily. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | M | DSP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free | — |
| Size | 5 MB | 7 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [G.M.A. Italia s.r.l.](https://appshunter.io/developer/1622782479) | [BLAM](https://appshunter.io/developer/1117883429) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-dspa401/id1229937158)

Control your car amplifier's integrated Digital Signal Processor (DSP) settings directly from your iPhone. Adjust EQ, bass, 3D sound, time alignment, and more. Save and load custom sound profiles to your phone or the amplifier.

**Highlights:** DSP control, EQ adjustment, Bass control, 3D sound effects, Time alignment, Save/load sound settings

**Features:** macOS Compatibility

**In-app purchases:** none


### DSP

[App page](https://appshunter.io/ios/app/dsp-440/id6751932217)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M free?

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

### Is DSP free?

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

### Do M or DSP have ads?

Neither M nor DSP shows ads.

### Which is updated more often, M or DSP?

M ships an update monthly, and DSP daily. Most recently, M was updated on November 2, 2026 and DSP on October 30, 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.*