Honestly, Aseprite can do literally more than what I can do in Piskel or Pixel Studio, offering more present palettes than that of Pixel Studio, including those I actually want such as the NES and Game Boy Color palettes.

Also, its price is also reasonable and cheap for both you and me: For you, it's $20, for me, it's about less than $10 (original price). Also,, Aseprite seems to be more popular in the game dev scene in creating game graphics than what I have been using for making all of the graphics stuff for my game.

I'm planning to move all of the production of game graphical assets to Aseprite, and learning how to use Krita as my primary software for creating large graphics (game promotional graphics, game parallaxes, in-game images, etc.), so as to make me feels more like a professional in making game assets (despite I'm still a n00b who get all game-making knowledge from the Internet and self-teaching).