If you got an iPhone then you are aware that Apple knows alot about you. You can run, but you can't hide!
Your identity
Apple knows your age, name, gender, date of birth, marital status, email address, telephone number, zip code, city, state, country and home address as soon as you register for an Apple account.
Your credit card information
Apple has your credit card information since you buy applications, music and movies from iTunes and the App Store.
Your outdoor location
Apple uses the GPS, Cell Tower Triangulation and WiFi access points in your iOS device to know your current and frequent locations.
Your indoor location
Apple uses iBeacon or Bluetooth Low Energy (BLE) for micro-location geofencing, a highly accurate monitoring system for locating you inside buildings and malls at least in the US.
Your behaviour
Your purchases allow Apple to understand you and your behaviours as well as when you buy, how much you buy, what triggers your buying behaviors, just look at what the Genius recommendation service does.
Your movement
Apple’s new M7 movement coprocessor uses your device’s accelerometer, compass and gyroscope to keep track of your motion. It knows when you’re running, walking, driving and even sleeping.
Your health
Several apps monitor your heartbeat and how you sleep, as well as your blood sugar level and more depending on your apps.
Your face
Apple knows how you look since the pictures that are taken with your iOS device are stored on their iCloud servers. Apple can run these images through facial recognition algorithms and recognize you.
Your family & friends
Apple knows your family and friends since you are connected with your iOS device are stored on facebook, google+, LinkedIn...
Your voice
Apple stores your questions, messages and stern commands which you whisper to Siri for up to two years.
Your fingerprint
Apple stores your fingerprint in order for you to unlock your device and for prompt payments on iTunes and the App store.
...and FYI Apple join US government’s PRISM data mining program.