# CF vs Proton Plug&Play DSP

The clearest difference is iOS requirement: CF at 8.0 against Proton Plug&Play DSP's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 26, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | CF | Proton Plug&Play DSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 11 MB | 9 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Guangzhou Coolpower Technology Co., Ltd.](https://appshunter.io/developer/1152993269) | [Rainbow Audio GmbH](https://appshunter.io/developer/1284821198) |

## What reviewers say

### CF

[App page](https://appshunter.io/ios/app/cf-a6a8/id1237273475)

**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 CF free?

CF 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 CF or Proton Plug&Play DSP have ads?

Neither CF nor Proton Plug&Play DSP shows ads.

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

CF ships an update every 2 months, and Proton Plug&Play DSP every 2 months. Most recently, CF was updated on September 26, 2026 and Proton Plug&Play DSP on September 11, 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.*