The main purpose of this API is to cater to the needs of iOS app developers who need to track the roaming status of their applications. It achieves this goal by cross-referencing the device's GPS location with its IP Geolocation (which is derived from the IP address). When the user's IP address indicates that they are outside the country, the API identifies them as roaming.
This API is part of the FREE API Package and is available in free and paid plans. Please visit the FREE API Package package page for limits and pricing information.