I need to constantly monitor the position of an user to notify him when he gets near something interesting. Which is the correct way to achieve this?
I have not been abl
What you need is geofencing. In iOS it's called "region monitoring". You can start with startMonitoringForRegion:
in the CLLocationManager guide. More detail is in the Region Monitoring Guide
In iOS, regions associated with your app are tracked at all times, including when your app is not running. If a region boundary is crossed while an app is not running, that app is relaunched into the background to handle the event. Similarly, if the app is suspended when the event occurs, it is woken up and given a short amount of time (around 10 seconds) to handle the event.