Many apps nowadays need location-based features in order for them to provide wonderful experiences to their users. Scaphold allows you to query for data by geo-location for location-based apps. Scaphold uses an integration called Algolia in order to do so. They help manage search indexes so that you can perform queries for geo-based queries.
To learn more about how to set them up and how they work, head over to the integrations section of the docs.