The application that is offered in the store is called “Negative Image - Invert Image Curve adjustment”. It is an amazing application that can make your photos into negatives. It has the ability to change images in your photo from a positive to a negative image.

It is a simple application and it can be used with any kind of photo; black and white or colored. You can adjust the curve for the images that you want to turn into negatives. 

You can save the images that you want to turn into negatives. You can also share them with your friends on social networks.