Great little application that does what it says, and does it simply and beautifully: tracks your "true" weight and daily calorie deficit. No more confusion over daily weight fluctuations or letting the scale ruin your day. The progress chart screen is laid out and presented compactly and clearly, and the interface for entering your weight is actually quite fun and satisfying.
When I first started using the app, I was a little confused about how recording my weight worked - what youd expect to be called the "Save" button is actually labeled "Show Progress." My only other complaint is that sometimes, after entering a new weight, the app crashes. It will do this consistently until I restart my iPhone. To avoid losing data, I hit the Home button after entering a new weight before it has a chance to crash, then return to the application if I want to view my chart.
Hopefully the developer will address the crashing issue soon, as its an extremely useful application for everyone who tends to give the number on the scale a bit too much power in their lives.