I need to create an application equal to this tutorial:
https://www.raywenderlich.com/136165/core-location-geofencing-tutorial
But I need that not draw circles as the area that active the notifications to the contrary I want that the user can draw a shapes custom and this is the area that active them notifications. It is an app type Snapchat Geofilters, here the reference:
https://www.snapchat.com/geofilters/submit.html
All this in the device (iPhone).