The FatWatch Weight Log

FatWatch is a tool for your iPhone or iPod touch to help you track and analyze your body weight. It uses methods described in The Hacker's Diet by John Walker.

Take a tour and then buy it on the App Store.
Nov 20 '10
Not particularly inspiringly named, but with daily weighing, scientifically charts your progress with a moving average to give you encouragement even on the days when you may be carrying an extra pound or two.