Pixelmator Photo is subscription-based editor, designed exclusively for editing photos. It includes full support for RAW photos from over
600 cameras, a magical Repair tool, and an extensive collection of nondestructive, desktop-grade color adjustments. Thanks to the batch editing capability paired with the machine learning-powered Crop, Denoise, Enhance, and Super Resolution tools, you can edit an entire photoshoot worth of photos in just a few taps. If you take and edit lots of photos, you'll probably enjoy it.
Pixelmator for iOS is a layer-based editor that you can use to create designs, paint, illustrate, edit photos, and more. If you're looking for a general-purpose graphics and image editing app, this is the one for you. If you need both, feel free to buy both apps.