The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Yetii Ltd.:
Gathered is an app to help you learn about and monitor your iOS device. If you've ever wondered what sensors your device possesses, what values can be determined from them or what an app can know about your device, Gathered is for you. Gathered offers a fast and simple interface to reference all the data sources it offers.Gathered features: All features are free; app is funded by adverts Adjustable update frequency Universal app - supports all iOS 7 and 8 devices Portrait and landscape support Control over which data sources are monitored Dynamic Type on iOS 7 and 8 Optimised for iPhone 6 and iPhone 6 PlusGathered features over 20 data sources (where available), including: Gyrometer Barometer (altitude and pressure) Accelerometer Magnetometer (compass) Proximity Microphone Battery Cellular Wifi Bluetooth GPS Memory (RAM) Storage The device's screen The device itself