Offline data is data that is generated and downloaded from a data service. Offline data can be downloaded from a feature service as a geodatabase, from a vector tile service as a vector tile package, or from an image tile service as an image tile package. Offline data from a feature service can include spatial data, non-spatial data, and attachments, and edits can be synchronized with the source feature service whenever a network connection is available. Offline data is typically used by applications that provide mapping and location based functionality without requiring a network connection. Applications that use offline data are built with ArcGIS Runtime APIs.