Field Survey Og

Field Survey OG is a professional, offline-first GIS mapping and field data collection app built for land surveyors, researchers, enumerators, civil engineers, and environmental scientists.

Conduct quantitative research, qualitative field interviews, or GNSS boundary surveys 100% offline in remote areas without internet or cellular connectivity.

=== 🌍 GIS & GNSS LAND MAPPING ===
Transform your phone into a precision geospatial data collector:
• Points, Lines & Polygons: Record boundary markers, linear assets (roads, pipelines), and parcel acreage with sub-meter GNSS tracking.
• Walking Trace: Walk property perimeters. Auto-records clean vertices every 15–20s with stationary drift deadband.
• Configurable Accuracy Gate: Set error thresholds (±1.5m, ±3m, ±5m, ±8m, ±10m, ±15m). Recording auto-pauses when satellite precision drops—preventing bad coordinates.
• Live GNSS Telemetry: Real-time C/N0 signal bars (dB-Hz), dual-band L1+L5 carrier detection, HDOP/PDOP/VDOP, and sky view (GPS, GLONASS, Galileo, BeiDou, NavIC, QZSS).
• Compact Attribute Card: Non-blocking bottom card lets you see the live map and ground features while entering data.
• Instant Geometry: Real-time path length (m/km) and area calculation (sq.m, hectares, acres).

=== 📊 QUALITATIVE & QUANTITATIVE RESEARCH ===
Design and run any mixed-method survey with the Live Form Designer:
• Quantitative Data: Numeric fields, counters, Likert rating scales, matrix tables, cascading dropdowns, and multiple choice.
• Qualitative Evidence: Voice audio recordings, geo-tagged camera photos, and descriptive notes.
• Smart Validation: Required fields, regex patterns, min/max limits, and skip logic for clean field submissions.
• Barcode & QR Scanner: Fast asset scanning using on-device ML Kit camera scanner.

=== 📡 100% OFFLINE IN REMOTE AREAS ===
Built specifically for remote deployments where networks do not exist:
• Zero-Server Dependency: Surveys, GIS layers, audio, and photos are saved securely in your device's encrypted SQLite/Room database.
• Offline Base Maps: Cache maps or switch between Google Hybrid, Satellite, Terrain, Normal, and OpenStreetMap.
• No Cloud Lock-in: Collect thousands of responses in remote forests, mountains, or rural plots. Export whenever you return to base.

=== 📁 MULTI-FORMAT EXPORTS & SYNC ===
Share datasets seamlessly with your GIS team and analytical tools:
• GIS & Google Earth KML: Export spatial boundaries, paths, and points with attribute styling for Google Earth, ArcGIS, and QGIS.
• Standard CSV & Excel: Clean spreadsheet datasets protected against formula injection (CWE-1236) for SPSS, Stata, R, and Excel.
• Structured JSON: Developer-ready structured JSON for databases and automated API pipelines.
• Google Drive & Sheets: One-tap sync directly to your connected Google Spreadsheets and Drive storage.

=== 🛡️ DATA PRIVACY & SOVEREIGNTY ===
• Your field data belongs strictly to you.
• No corporate telemetry, no data scraping, and no third-party data broker sharing.
• Complete in-app and external account and data management.

=== 👥 WHO USES FIELD SURVEY OG? ===
• Land Surveyors: Boundary demarcation, plot area calculation, and asset mapping.
• Social & Academic Researchers: Quantitative census, qualitative interviews, and socio-economic research.
• Agriculture & Forestry: Crop inspection, farm perimeter tracking, tree tagging, and soil sampling.
• NGOs & Disaster Relief: Rapid needs assessment, camp mapping, and damage reporting.
• Civil Engineers: Route alignment, site inspection, and asset inventory.

Download Field Survey OG today and conduct professional GIS and field surveys anywhere on Earth!