Free Booking App PSD According to iPhone 6+ on Behance
This wireframe kit comes in handy when starting a new app design project by helping you create the prototyping. The kit contains diferent UI elements in PSD and AI file formats and is brought to you by Vlad Cristea.
News Reader iOS7 Application Template
An iPhone App Wireframing Kit
Last month Google introduced their new visual language called Material Design releasing with it, a very detailed style guide.
iPhone and iPhone 4 Grid Systems