Games are popular on the App Store right now (check out the lists of top paid and free aps), but several readers have asked us to extend beyond games with the Daily iPhone App series. So, here you go. Wolfram Alpha for iPhone is a mobile version of the very useful "computational knowledge engine" service.
Just like the online version, Wolfram Alpha for iPhone provides answers to your questions about math, almanac-style timetables, or just about anything else you need to know. Answers are provided in the form of text, images, tables, charts, graphs, grids, and so on.
The app does require an Internet connection, unfortunately, but it's recently been tuned up and streamlined, so it should be faster than ever. The app has also gotten support of Facebook sharing, so if you find something interesting, you can make sure your friends see it as well.
WolframAlpha can be super helpful whenever you're out and about. The universal app is available on the App Store for US$1.99.