Gradient
Gradient, an open-source collaboration with Nitzan Hermon, is an easy way to create full-screen gradient wallpapers for your iOS device. Gradient uses Core Graphics to render smooth gradients between two, random colours. Each gradient supports pan, rotation and zoom to create the perfect blend.
Save a gradient to your Photo Library by tapping the screen. Shake the device to generate a new gradient.
Gradient is written in Swift and is available for free on the App Store.