Rockd is an educational Android application designed for geology enthusiasts, from professionals to casual learners. It provides instant access to geologic and geographic summaries of your current location, making it easy to explore the geological landscape around you. Users can interact with over 140 geologic maps and access paleogeographic maps, enriching their understanding of Earth's history. The app also allows users to contribute their own observations, enhancing the communal knowledge base.

The application features offline capabilities, enabling users to document their field observations without an internet connection. Users can record geologic features using their device's compass and track their progress through the geologic record. Additionally, Rockd offers access to published literature related to mapped geologic units and allows users to share their findings with others through unique URLs. This multifaceted approach makes Rockd a valuable resource for anyone interested in geology.