LBS service, Geolocation API

Hello. We need to implement LBS service in the app. Not the whole maps service, just LBS. In the documentation https://docs.aws.amazon.com/location/latest/developerguide/tutorial-maplibre-ios.html we see how to use Amazon maps. But we don't need to replace the whole maps service, we need only to replace the LBS service. I mean we need the service where we send the information about cell towers and receive the device location. And this function exactly I don’t see in your documentation. Please tell if you have this LBS service and where we can find documentation on it. And also we need to know the prices for LBS requests exactly. Anomg your prices we haven't found pricing for LBS.