This article summarises everything about why and how Weblaunch's location services work as they do.
A location, (or a latitude and longitude) is required for some Weblaunch features to work. Those include the following:
Location data is not used in any other parts of the app.
Weblaunch is unique, as the user themselves handpicks the location they want to use via a map. First of all, picking a location is optional. If no location is picked, no other features than the sun widget and weather widget will be disabled.
Users can choose whatever location they want to use in Weblaunch. Antartica, Mount Everest, or their personal location are all the same in Weblaunch's eyes. Although note that some locations may deliver inaccurate weather reports to the Weather Widget, as they don't have any airports nearby.