The amount of time it takes to copy this $30 “app” is the 30 seconds it takes to got through the steps I listed. Pixetool is a gimmick. It produces a reasonable facsimile of pixel art, but nobody who wants real pixel art would ever use this program, and nobody who wants something quick and dirty would need to spend the money on it.
Then Photoshop should be free. 20 years of working with every iteration of GUI change doesn’t make a program more user friendly, it just creates the ability to call any program that doesn’t match your preferred interface “unintuitive”.