iOS: Tracking fitness measures such as distance run, weights and even sleep is great, but unless you really visualise that data, it's pretty useless. Datalove provides those visualisations so you can really see your progress.
Datalove can manually or automatically track certain kinds of data. Once you get a few days worth of data, you can look at charts, track information, and see how you're doing in a nice, visual way. If you love tracking yourself, Datalove is a nice way to actually visualise all that data in a way that makes sense.