Here is my implementation of GraphView using coreGraphics.I used CALayer , CAShapeLayer and CAGradient layer for this drawing. CAGradientLayer to show Clipped gradient under the graph. UIBezierPath to draw Points and animate them when jumping from one point to another. I also created custom PopupView with intelligent tooltip movement which is also using UIBezierPath to draw that tip. Used UILongPressGestureRecognizer to get finger movement on graph. Well my navigationbar is also drawn using CAShapeLayer & UIBezierPath =)