55 Amazing Mobile App UI Designs with Ultimate User Experience - 40 Beautiful use of color. Interesting to have a gradient background behind multiple UI elements

Dribbble Sleep Control

Love the UI, colours, simplicity and 'friendly colourings/design Sleep Control on Behance

Twitter Login for iPhone 5 Retina Ready

This post is complete collection of latest free UI designs PSD .You can see several kinds of UI/UX designs PSD such as Free UI Kit’s, various web UI Elements, Mobile UI Elements etc.

4 App Screen Presentation Mock-up Templates

AIS is leading web design agency perth with talented web designer in perth, Australia. Perth website design company that offer affordable web design services.

App Mock-Up Templates - Mobile Displays

App Mock-Up Templates v2

Buy App Mock-Up Templates by kevinhamil on GraphicRiver. Showcase your app designs and ui kits with style.

Preview for Mobile & Touchscreen transitions

Graphics showing the flow from one screen to another to indicate to developer how to transition screens after a user takes an action. Can be used for mobile apps or mobile web pages as well.