Part 4 - System Services
When Location Services are turned on, certain location-based System Services are enabled. These can also be fine-tuned by going to Settings > Privacy > Location Services > System Services (at the very bottom of the Location Services page), where you may disable individual location-based system services on your device.
If you turn Location Services off, you'll be prompted to turn it on again the next time an application tries to use this feature.
The System Services settings panel. Individual system-wide services can be controlled for location-revealing activities
Here are examples of some of the enabled System Services that you can control individually:
- Popular Near Me: Your iPhone will periodically send locations of where you have purchased or used Apps in an anonymous and encrypted form to Apple in order to improve a crowd-sourced database that may be used to offer geographically-relevant Apps.
- Frequent Locations: Your iPhone will keep track of places you’ve recently visited, as well as how often and when you visited them, in order to learn places that are meaningful to you. Apple claims that this data is kept solely on your device and won't be sent to them without your consent. This information is used to provide you with personalized services, such as predictive traffic routing.
In System Services > Frequent Locations, here is an example from the location information that was tracked from my iPhone during a recent trip to Rhode Island
- Location-Based iAds: Your iPhone will transmit your location to Apple in order to provide you with geographically relevant iAds.
Next: Location Warnings and Crowd-Sourced Location Services