Dribbble is the leading destination to find & showcase creative work and home to the world’s best design professionals.
Scrnshts is a great tool that provides a variety of App Store Screenshots, to inspire designers to market their next project!
Logopond is an inspirational showcase of logos and identity work from designers of varying abilities all across the world.
Collect UI is a platform for your daily inspiration collected from daily UI and beyond. Based on Dribbble shots, hand picked.
iOS Icon Gallery
iOS Icon Gallery is a collection of hundreds of iOS App icon designs. It’s a great tool for inspiration on your next App design project.