An app I built during the COVID-19 lockdown when government advice was to stay at home and only exercise within a 2 km radius of home. This app locates you on on a map using your Eircode and show the bounds of your 2km circle, or in later weeks, the 5km and 20km boundaries. You can close the app and it will sound a siren alarm when you reach the boundary, with a "You in danger gurl" alert.
After cloning this repo, you must install the Google Maps SDK and create a Google Cloud Platform Account that provides access to Maps SDK for iOS and Geocoding API. Just add your own GoogleService-Info.plist file to the project and replace references in the project files of with your own API KEY. Install any dependencies via cocoapods if neccessary.