iPhone ruler

Just because your iPhone is small doesn't mean it cannot be used to measure longer objects.

Extendable Ruler

RulerPlus is a simple application for your iPhone / iPhone 3G / iPod Touch, providing you with a simple 7 cm / 2 inch ruler.

Ruler+ let's you take measurements quickly and easily. Ruler+ also allows you to extend the ruler. Simply move your iPhone to the right and press '+' to create the extended ruler.