# DSP vs Proton Plug&Play DSP

The clearest difference is update cadence: Proton Plug&Play DSP at every 2 months against DSP's every 8 months. DSP's advantage is iOS requirement (9.0 vs 12.0). 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.

DSP ships an update every 8 months, Proton Plug&Play DSP every 2 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DSP | Proton Plug&Play DSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Size | 7 MB | 9 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Guangzhou Fenlang Electronic Technology Co., Ltd.;](https://appshunter.io/developer/1125294061) | [Rainbow Audio GmbH](https://appshunter.io/developer/1284821198) |

## What reviewers say

### DSP

[App page](https://appshunter.io/ios/app/dsp-x16/id6466761182)

**Features:** macOS Compatibility

**In-app purchases:** none


### Proton Plug&Play DSP

[App page](https://appshunter.io/ios/app/proton-plug-and-play-dsp/id6480202008)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DSP free?

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

### Is Proton Plug&Play DSP free?

Proton Plug&Play DSP is free to download, with no in-app purchases.

### Do DSP or Proton Plug&Play DSP have ads?

Neither DSP nor Proton Plug&Play DSP shows ads.

### Which is updated more often, DSP or Proton Plug&Play DSP?

DSP ships an update every 8 months, and Proton Plug&Play DSP every 2 months. Most recently, DSP was updated on November 3, 2026 and Proton Plug&Play DSP on October 25, 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.*