Pixelorama is the most user-friendly (whether you're a newbie or a seasoned sprite/pixel art crafter) and feature packed app of it's kind that I've ever seen. I was suggested to check you out in the Github issues section of another pixel art app that is no longer being developed, and I have to say, Pixelorama is far more than just a simply suitable alternative, it's a vastly superior experience in every regard.
Looking forward to seeing what kind of cool stuff I can create using this app over the coming weeks/months, and plan on tossing you guys a couple of bucks when I get paid later this week, you certainly deserve it! Thanks for being such awesome developers and actively listening to all of the people in the comments and implementing suggested features with crazy quickness. You rock!