Affinity Photo brings a new beginning to image editing for professional photographers, photo retouchers and conceptual artists. With high-end image editing in mind, Photo has been designed with power, speed and performance from its inception, balanced with an intuitive workflow-oriented user interface.
Here's an overview of what you can expect.
and much more...
Why not review the product's key features in more detail?
The Affinity Photo architecture and a powerful suite of retouch tools have been brought together to create a photo retouching solution integrated within Apple Photos as an extension.
Please see this link for up-to-date system requirements.