What are some alternatives?
When comparing Affinity Photo and Adobe Photoshop, you can also consider the following products
GIMP - GIMP is a multiplatform photo manipulation tool.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
Sketch - Professional digital design for Mac.
Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.