Geo ID

Transform your smartphone or PC into a professional geological workstation. Geo ID is a comprehensive, offline-first digital companion designed by geologists, for geologists—bridging the gap between rugged field collection and museum-grade curation.

Whether you are an academic researcher, exploration geologist, student, or hobbyist, Geo ID replaces loose paper labels and messy field notebooks with a powerful, pocket-sized database.

🌍 100% Free | Open-Source | Completely Ad-Free
Built to ensure accessible geoscience education and field data collection without any financial barriers.

🛠️ KEY FEATURES

📍 Advanced Field Tools & Structural Geology
• Digital Brunton Compass: Take accurate strike, dip, dip direction, and trend/plunge measurements instantly.
• Automatic Stereonet Plotting: Visualize your structural data on equal-area or equal-angle stereonets directly in the field.
• Smart Waypoint Marking: Pin locations with automatic single-click coordinate fetching and integrated photo attachments.
• Path Tracking & Voice Notes: Record survey routes with real-time distance calculations and geo-embedded audio notes.

📦 Museum-Grade Specimen Cataloging
• Comprehensive Material Support: Log and structure data for minerals, rocks, fossils, soils, and water samples.
• Visual Specimen Grid: Browse your entire repository using a clean, card-based layout featuring high-quality thumbnail previews.
• Specimen Comparison: Compare physical traits and data entries side-by-side (Rock-Rock, Mineral-Mineral, Fossil-Fossil).
• Map Integration: View exactly where every sample in your collection was harvested via the interactive map interface.

🖨️ Smart QR Integration & Data Curation
• Bulk A4 QR Printing: Geo ID automatically arranges your unique specimen QR codes into a space-saving A4 grid layout (up to 55 specimens per sheet).
• WYSIWYG Print Preview: See exactly how your labels look before printing to eliminate paper waste.
• Instant Scan Retrieval: Attach printed QR codes to your physical specimens, then scan them to pull up their full data log instantly.

🔒 Architecture & Data Portability
• Offline-First Workflow: Built for remote field conditions. Log data deep in areas with absolute zero cellular service.
• Secure Cloud Sync: Back up and protect your data using Cloudflare R2 and Supabase only when you choose to go online.



🚀 WHAT’S NEW IN VERSION 1.0.5

• Hydrogeology Integration: Added support for logging and tracking Water Samples to accommodate environmental and hydrological research.
• Native CSV Export: Export your specimen data into highly versatile CSV files, making it effortless to import field collections directly into ArcGIS, QGIS, Excel, or Python workflows.
• Optimized Field Tracking: Fully updated background location tracking to accurately map your structural paths, even when your screen is locked or the app is in your pocket.
• UI & UX Improvements: Enhanced the visual dashboard layout for better legibility and battery efficiency under direct sunlight.



Stop losing labels and scrambling to read weather-worn notebooks. Start your digital geology journey with Geo ID today!