crop pictures in iOS 9.2.1

Enlarge the photo, tap "Edit", Tap , and Photos suggests an optimal crop, but you can drag the corners of the grid tool to set your own crop. Move the wheel to tilt or straighten the photo. Tap Auto to align the photo with the horizon, and tap Reset to undo alignment changes. Tap to rotate the photo 90 degrees. Tap to choose a standard crop ratio, such as 2:3 or Square.

(from: http://help.apple.com/iphone/9/#/iph96b1e322)

You're welcome 🙂