# Swap RGB vs RTctrl

The clearest difference is in-app purchases: RTctrl at none against Swap RGB's 1. RTctrl also leads on iOS requirement (11.0 vs 15.6). Swap RGB's advantage is device support (4 vs 2). On price, update cadence and ads there is nothing between them.

Both are free to download. Swap RGB sells 1 one-off in-app purchase. RTctrl asks for nothing beyond the download.

Swap RGB ships an update every 6 weeks, RTctrl monthly. The most recent releases landed on September 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Swap RGB | RTctrl |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (12 ratings)](https://appshunter.io/ios/app/swap-rgb/id1109935965/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 39 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [奇志 熊](https://appshunter.io/developer/645849034) | [HMO Europe B.V.](https://appshunter.io/developer/1247770241) |

## What reviewers say

### Swap RGB

[App page](https://appshunter.io/ios/app/swap-rgb/id1109935965)

Easily adjust image colors by swapping Red, Green, and Blue channels. Create unique infrared effects without losing image quality. Offers selective channel mixing and masking for precise control.

**Highlights:** Swap Red, Green, and Blue color channels, Create infrared effect photos, No loss of image quality, Masking for selective adjustments, Adjust swapping volume

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enable All Swapping | $9.99 | one-time |


### RTctrl

[App page](https://appshunter.io/ios/app/rtctrl-light-control/id1618410189)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Swap RGB free?

Swap RGB is free to download, with in-app purchases available.

### Is RTctrl free?

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

### Do Swap RGB or RTctrl have ads?

Neither Swap RGB nor RTctrl shows ads.

### Which is updated more often, Swap RGB or RTctrl?

Swap RGB ships an update every 6 weeks, and RTctrl monthly. Most recently, Swap RGB was updated on September 18, 2026 and RTctrl on October 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.*