Craftwork - A collection of User Interface resources made by Craftwork
Icons8 - Free app for Mac & Windows already containing 39,800 icons. Allows to search and import icons…
Control Illustrations - 108 free flat illustrations with customizable characters
Previewed - Beautiful mockups & graphics for your next app
Humaaans - Mix-&-match illustrations of humans with a design library.
Screenspace - ScreenSpace empowers app companies to showcase their products with the power of 3D device videos.