App: Swap RGB
Developer: 奇志 熊
Genres: Foto und Video, Dienst­programme

It's simple to adjust image's color by swapping Red / Green / Blue channel each other.
Easy to make an infrared effect photo.
This app won't cause any loss of image quality.

How to it works:
1. Click RG \ RB \ GB buttons to select channel to be mixed
2.Long press on mask-view to set a mask.
3. Drag slider to change swapping volume
4. Save

Please Note:
The Red-Green swapping is free, the Red-Blue swapping or the Green-Blue swapping needs to pay. 

The Mac version of this app  is also available in Mac App Store now.

Release notes:
- Dark mode improvement
- Multi-task mode (no longer have to be running with the Full Screen mode for the iPadOS)
- More tips added
- UI improvements