It would be nice if you could add a
measurement of your own. (eg. if you have one leg larger than another and want to track both individually. Or you want to track bust, fingers, forearm, 2nd waist, single thighs. as well as the current options.)
On the weight tracker: it would be nice if you could, in essence, zoom out and see your weight trend over a longer period of time at once, or even since you started tracking.