The National Geospatial-Intelligence Agency (NGA), in collaboration with BIT Systems, makes available under the MIT License a collection of OGC GeoPackage spec libraries listed as GeoPackage implementations. The NGA GeoPackage Libraries include creation, visualization, and management SDKs including sample applications for Android and iOS.

GeoPackage

A SDK that provides the ability to manage GeoPackage files providing read, write, import, export, share, and open support. Open GeoPackage files provide read and write access to features and tiles.

MapCache

An app that utilizes and demonstrates the functionality in the GeoPackage Mobile Libraries.

WKB

A non GeoPackage specific library for writing and reading Well-Known Binary Geometries to and from bytes.

TIFF

A non GeoPackage specific library for reading and writing Tagged Image File Format files.