For as long as I can remember, Adobe has had the go to products for design. Photoshop and the rest of the creative suite have always seems to have a strangle hold on the design market and all the competitors were far behind.
In the last couple years, however, that seems to have changed. Now there are great alternatives like Sketch and Pixelmator. Both are very quick, much simpler than their Adobe counterparts, and provide everything I need to UI/UX design. The best part? They cost a small fraction of what Adobe charges for Photoshop, Illustrator, and the now defunct Fireworks.
I’d highly recommend anyone checking them out unless Adobe’s products provide a specific feature you need.