Rockd vs NAHPU

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.

NAHPU is a free, open-source digital field catalog for natural history research. It helps field researchers, museum staff, students, and collection teams keep specimens, sites, collection events, tissues, media, and notes connected within a single project. Built for real field conditions, NAHPU’s core cataloging workflow works offline and requires no account. Your records remain on your device unless you choose to export, back up, or share them. What you can do - Organize projects, team members, and taxon registries - Catalog mammals, birds, herpetofauna, and arthropods with group-specific fields - Record sites, coordinates, habitats, collecting events, effort, and environmental context - Track specimens, preparations, parts, tissue samples, measurements, and associated data - Capture and organize photos, audio, video, and field notes - Exchange selected records and settings with QR codes - Review collection statistics during fieldwork - Export records as CSV, TSV, Excel, or JSON - Create Darwin Core Archives, Darwin Core Data Packages, and NAHPU Data Packages - Transfer projects, create restorable backups, and design PDF labels and documents From field capture to curation NAHPU keeps related records together and reduces repeated entry across field and museum workflows. Its open-standard exports, including Darwin Core, help teams move structured records into analysis, collection-management, and biodiversity publishing systems. Private by design NAHPU does not require an account. Core data is stored on your device, and you decide when to export or share it. Some optional map views require an internet connection. Responsible use NAHPU is a cataloging tool. You are responsible for following applicable permits, institutional protocols, ethical standards, and local laws when collecting or handling specimens. Note that the records shown in app screenshots are for illustrative purposes only and do not reflect real field data.