And if you prefer to draw on an iPad, Affinity Photo for iPad is also available.
If you've already used Photoshop but want to move away from the subscription model, then Affinity Photo is certainly one of the best options since it offers full compatibility with PSD files, making it effortless to migrate projects over. It also has enough power even to cope with 100+ megapixel images, so you don't have to worry about working with super-high-resolution files. And if you prefer to draw on an iPad, Affinity Photo for iPad is also available.