Altitude for Windows 8 shows your current altitude (in meters or feet) and your current location (latitude and longitude and terrain map) based on your GPS, cellular, wifi, network, and/or internet connection. The values will then update based on either the time lapse or the movement threshold you choose in Settings. A live tile can optionally update with your current altitude. Finally, you can share your current location with other apps on your Windows 8 devices, like email, Twitter, Facebook, etc.