There's one problem, though--those few taps. To actually get that at-a-glance information, I've got to launch the built-in Weather app, wait for it to load, and then find out how hot or cold it currently is. That's not a huge investment of time, obviously, but I'd like to be able to just glance at my phone to get the temperature as easily as I do the time.
That's the main problem looks to solve. The universal app from pushes the current temperature to the home screen of your iPhone, iPod touch, or iPad--the temperature, which is tied to your home location, appears as an alert badge over the Fahrenheit logo, just like the alert badges that appear on apps like Messages and Mail.
But Fahrenheit delivers more than just a home-screen temperature. Launch the app, and you'll find a wealth of weather information--including current conditions, humidity, pressure, and dewpoint; a 10-day forecast; the wind speed and direction; sunrise and sunset times, and a UV index among other data. Tap an individual day, and you'll get the forecast in three-hour blocks. The content is about as extensive as what you'll find in , another International Travel Weather Calculator app, though that offering provides a more polished interface than what you'll get with Fahrenheit. Still, Fahrenheit is still an easy-to-navigate app with data that's as readable on the iPhone as it is on the iPad.
If you somehow find the wealth of weather info contained in Fahrenheit inadequate, a $1 in-app purchase adds three-hour rain, satellite, and wind, speed maps. (Three-hour temperature and cloud maps come standard with the app.) The add-ons are decent, though hardly indispensable. If you're really into radar imagery, a more dedicated app like will probably be more to your liking. Still, it's nice of Fahrenheit to offer access to such data at a fraction of the cost.
As its name would imply, Fahrenheit only gives the temperature in one scale. If you live in a country that favors Celsius or you simply abhor , the developer offers . That app is a feature-for-feature match with Fahrenheit, except for one difference that should be screamingly obvious.