iPad and iPhone Apps

Knot Time Knot Time
Video tutorials make learning knots easy - at home or in the field. Free version with the basic knots to get you through most situations; and a paid version with an extensive knot library.
Breath Hold Breath Hold
Great tool to improve your breath holding ability!
Talking Timer
Talking Timer
A configurable stopwatch/timer app that allows you to setup the voice prompts you want to hear as the timer counts up or down.