Review images iOS 9 GUI (iPhone)
Photoshop and Sketch templates of GUI elements found in the public release of iOS 9.
Review images Diverse Device Hands
Two different diverse hands holding various modern smartphones (iPhone 4-6+, Nexus, Windows Phone).
Review images Origami — Design Prototyping
A free tool for designing modern user interfaces. Get sample files and documentation to quickly build prototypes.
Review images Facebook Design on Medium
Experiences from the people designing products that billions of people use every day.