Sweety iOS UI Kit
Here is a stunning freebie from Sweety, an awesome iOS ui kit containing over 100+ multicolored screens ranging over 7 categories designed for the iPhone 6! Vector shapes allow for resizing objects to fit other screen sizes while still retaining retina resolution. The design looks flat with vibrant colors giving the whole kit a fresh look. The author of this useful freebie is Damir Bektilov.