This application transform your photos to monochrome images.
You can edit the degree of black and white balance.

Step is shown below

1. Please take a photograph in the "Camera" tab or select a photo in the upper left folder icon.
2. Please edit the intensity of black and white balance to move the slide bar in the "Processing" tab.
3. Please select the "save" button.
※You can show or hide the slide bar if you tap the device in "Processing" tab.

Please look at support URL for details.
Thank you.