For under a dollar, you can now let friends and clients know when you’re answering emails from 12,000 ft. thanks to Studio Six Digital Altimeter App for GPS enabled iPhones. A pretty basic app, Altimeter gives your current altitude and allows the user to enter a start and end altitude to calculate net gain or loss. The accuracy of the app depends on the phone’s visibility to GPS satellites thus should not be relied on to provide precise altitude readings. Hey, you get what your pay for.
$0.99; iphoneappsplus.com, studiosixdigital.com