Prisma iOS Photo Filter
Prisma is a new photo filter for iOS phones and tablets. It's one of the leading edge applications that use neural networks. After you download the application, and load a photo from your camera roll/dropbox, you select a filter style, and see what happens.
After you have a Prisma-baked image, you can take the image into a editing app such as Snapseed for basic editing, or the terrific icolorama app for in-depth painting.
Below are some outputs of Prisma using the head shot, above, I took of Allie over the weekend.
Ice Cream Filter
Gothic Filter

Composition Filter
Curly Hair Fitler
Photo by DavidJosephButler; images created using Prsima