Andrew and Alexa Kaz today released Ruler 2.0 for iOS, a convenient mobile innovation of the universal tool. Ruler brings fun and simplicity to a relatively tedious task. While conventional rulers involve mentally discerning measurements from small markings, using Ruler is just a matter of aligning the pointer: Precise, fully formatted measurements appear instantly. Save and come back later to see what you measured and when. Convert between inches and centimeters with one tap, and much more.