App UI PSD Kit

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App UI kit is a set of beautiful design elements created in Photoshop. The UI kit features Flat, Dark Flat and iOS7 design styles. Using this pack, you can create beautiful iOS / Android app designs.

You can purchase it for $14
https://creativemarket.com/graphicsfuel/10836-App-UI-PSD-Kit-in-3-Styles

Each set contains over 300 elements in 60 PSD files along with bonus elements. You can use the components to prototype your designs and save your time. Further, shape layers help you resize the elements easily for retina and non-retina layouts.