Rockd vs SnowTool

Explore, learn about, and document your geologic surroundings! Whether you are a professional geoscientist or curious about the rocks around you and the stories they tell, Rockd allows you to explore and learn about the geologic record, contribute your own observations, and log your journey through the geologic record. Features: - Instant access to geologic and geographic summaries of your current location via a Dashboard - Interactive global access to more than 290 geologic maps, with more being added weekly - Explore the landscape with a dynamic, 3D virtual globe - Save maps for use in the field with a built-in map caching system - See your past location and explore paleogeographic maps from C.R. Scotese and GPlates - View Macrostrat stratigraphic columns where available (beta) - Explore published literature containing mentions of mapped geologic units (when available) via xDD (formerly, GeoDeepDive) - Elevation data for most points on Earth from digital elevation models (DEMs) - Add your own field observations even offline; tag features from Macrostrat and the Paleobiology Database - Record strike/dip or trend/plunge for geologic features, using your phone's compass - Track your progress through the geologic record privately, or share it with others - See the public activity of other users and share your own and other public checkins using unique URLs Rockd is produced by the Macrostrat lab in the Department of Geoscience at the University of Wisconsin - Madison. Support provided by the National Science Foundation (NSF) and the Dept. of Geoscience. Experiencing issues? Send an email to contact@rockd.org and we will do our best to help you resolve it.

SnowTool is a free, easy-to-use snow crystal identification app designed for snow science enthusiasts. Using internationally recognized classifications, SnowTool helps you understand atmospheric and snowpack structures with a rich gallery, glossary, and detailed breakdowns. Features: Atmospheric vs. Snowpack Forms – Understand how snowflakes evolve over time. Major & Minor Categories – Identify snow crystals with internationally recognized classification codes. Gallery View – Explore high-resolution images of real snow crystals. Glossary & Classifications – Learn the language of snow science. Educational Resource – Supports learning in cryospheric and hydrologic sciences. SnowTool is free—and we hope to keep it that way. Whether you’re a scientist or just fascinated by the beauty of snow, SnowTool helps you see snow in a whole new way.