Track GPS position with iOS app killed

I want to share a simple how-to, used to get the GPS position of an iOS user with the app completely closed, in the background, and in the foreground without using any useless workaround like idle timer and background operations…

We discuss about the GEO-fence tecnique. You can read more on Apple reference:

https://developer.apple.com/documentation/corelocation/monitoring_the_user_s_proximity_to_geographic_regions

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