One of the coolest things this software offers, is the Inpainting Brush Tool, which operates much like Photoshop's Content-Aware Fill. You can even use this software to create HDR images or stitch multiple images together into a Panorama. Importantly, it also features batch processing so you can make the same adjustment to several images at once. You'll find the basic tools like red-eye removal, crop, resize, drawing tools, selection, and more, but you'll also find lens distortion correction, a cloning stamp, color adjustment, blur, brushes, layer masks, and several other advanced editing tools. Make a one-time payment and the software is yours to use - no subscriptions and no unexpected changes in price. However, one of the best things about Affinity is pricing.
It makes for an easy transition since it uses many of the same keystroke shortcuts and provides many of the same editing features. This is hands down the best alternative to Photoshop out there right now.