AniBez - Playful Visual Bezier Hack 1.1.1 + Redeem Codes

Disclose the hidden trace of Bezier curve.
Play it in any speed until you get the Aha! moment.
Understand the math behind it by observing.

Points are draggable. Drawing options are rich.
It renders three orders of Bezier function.

Though displaying on iPhone is ok, it is best to see it on iPad or Mac.