Developer Sahil Lavingia is working on building a complete iPhone application in one week. The effort started from Sunday and so far seems to be going to be at a nice pace. Along the way he’s also sharing some nice tips on how is implementing the features.

Your weight, your kill-to-death ratio in a first-person shooter, your daily intake of water (eight glasses a day, they say!), or your daily workout which you must… not… missed, again. There are individual apps for all of these things. But why? Think about this: tracking your weight is recording down a single number, daily. So is your kill-to-death ratio. So is your daily intake of water. So is whether or not you go to the gym today (either a 0 or a 1). If you reduce activities down to the numbers that represent them, it’s easy to see that one app can manage them all. Meet Dayta.

via One Week App