rmK PRO is a multimedia tool available on iPhone that specializes in removing black or white backgrounds from images, turning the removed parts transparent. This feature is particularly useful for extracting logo marks or objects in images where the background is either black or white. Users can save the converted image in its original size and quality, allowing for further editing in other applications.

To use rmK PRO, users simply need to select an image from their camera roll, choose the color (white or black) to remove, confirm the resulting image (with zoom functionality available), and save the processed image to the Camera Roll. The app stands out for its ability to create high-quality transparent images that maintain their shades, setting it apart from other background removal applications.