I’ve always liked the iPhone’s Stocks app, even in version 1.0. In addition to the eye candy, the app showed out of the box thinking. Most other charts have the axis labels neatly rounded, e.g. if the price range is between 11 and 29, the Y axis labels would be 10, 20, and 30.
But someone forgot to tell the iPhone developers. Instead, the Y axis on the Stocks app shows the low and high for the stock or index, thus conveying very useful information on a diminutive screen. In the chart on the right, you can tell right away that the low and high for the index are 4683 and 5050.
Recently, I was further impressed with how the app handled an interruption in data feed:
Compare the above with how Yahoo! Finance handled the interruption in data feed on the same day:
