The iPhone is more than just a phone to me. It’s an assistant, a device that I use to keep track of multiple things in my life (money, stats, followers, weight, smoked cigarettes) - each thing with a dedicated application. In the age of database driven applications, this is no doubt the best situation Jeff Raskin could ever imagine: a device that transforms in a new one everytime, according to the application that’s running on it.
But wouldn’t it be great to track all of this data in a single software? You know, at the end of the day they’re just numbers. I’ve slept 5 hours, I’ve spent 10 Euros in beer, I ate 3 eggs two days ago. They’re different situations, but they’re just numbers. And that’s why Sahil Lavingia (developer of Twizzle and Color Stream) started developing Dayta, the already popular One Week App: a single app that could keep track of data, no matter the context. Just data, and days.
And I tell you what, it works.

