Add the following keys to Info.plist file (String value), the corresponding values will be shown to the user by iOS
<key>NSLocationAlwaysAndWhenInUseUsageDescription</key><string>We would like to access your locations</string><key>NSLocationWhenInUseUsageDescription</key><string>We would like to access your locations</string>
Step 3: SDK enable
Inizialize
To initialize the framework and allow it to collect data in the background it is necessary to add this call in the didFinishLaunchingWithOptions method (this method don't start the tracking engine)