Atoll HigherThan shows your altitude (meters and feet supported) compared with world-famous geological, historical or engineering objects, such as leaning Tower of Pisa and Mount Fuji.
This program can be amazing for mountain hikers, rock climbers, soaring pilots or any other sort of travelers. Indeed, don't you think it could be interesting to know that you climbed higher than the Big Ben or Eiffel Tower?...
We planning to release free updates with increasing number of ground objects to compare on a regular basis.
NOTE: Measurement relies on your Iphone built-in A-GPS, so precision is limited by current level of this technology.
Also, the precision is affected by the satellite signal quality. On open-sky spaces it's pretty good, but under other conditions can noticeably decrease. Also, after startup it requires some time to locate the necessary satellites, so during first minutes of running the measurement can be less effective.
The program is running only on GPS-enabled iPhones 3G (second generation or higher) with iPhone OS 3.0 or higher. No iPod Touch, 1st-generation iPhones or minor OS versions supported.