Looking for a highly accurate GPS area calculator and land measurement app? SSField turns your smartphone into a precision GPS mapping tool. Easily walk the boundary of a field, lot, or property to calculate accurate area and perimeter in minutes—no expensive surveying equipment required.

Whether you are a farmer calculating field acreage, a landowner checking property lines, or a professional surveyor collecting client-ready data, SSField is the ultimate GPS land measure tool adapted to your workflow.

🚜 BUILT FOR EVERYDAY USE
Mapping is completely free and unlimited. Simply open the app, tap Draw, and start walking. SSField acts as your personal acreage calculator, plotting your polygon live on the map. Watch your area and perimeter update in real-time using your preferred measurement units (acres, hectares, square meters, or square feet).

📐 BUILT FOR PROFESSIONALS & LAND SURVEYING
Need centimeter-level accuracy? SSField supports external Bluetooth RTK receivers and streams NTRIP (NRTK) corrections. It’s perfect for construction, agriculture, and professional land surveying. Export your mapped data directly to standard GIS software (QGIS, ArcGIS) with zero hassle.

🌟 KEY FEATURES

📍 GPS Land & Area Measurement
• Walk any boundary to watch your custom polygon draw live.
• Real-time field area measure and perimeter calculations.
• Smart GPS filtering removes noisy or jumpy signals, ensuring your land map is never distorted.

🎯 Precision Point Capture
• Stand at a corner and let SSField average multiple GPS readings (weighted by accuracy) for a highly reliable, survey-grade pinpoint.

📏 Offset Mapping
• Can't walk the exact property line? Walk alongside a fence, wall, or hedge and record the true boundary line with offset mapping.

🛰️ External GPS, RTK & NRTK Support (Pro)
• Pair any Bluetooth RTK/NRTK receiver to achieve centimeter-level accuracy for professional surveying.

✏️ Smart Map Editing
• Tap the screen to manually add points to your map.
• Long-press and drag to nudge corners perfectly into place.
• Quick Undo removes the last point so you never have to start over.

📤 Professional Data Export (Pro)
• Export your field maps instantly to GeoJSON, Shapefile (SHP), KML, DXF, or branded PDF reports.
• Fully compatible with QGIS, ArcGIS, and standard GIS tools.
• Supports any Coordinate Reference System (CRS) so your exports line up perfectly.

📷 Photos & Custom Field Data (Pro)
• Attach geotagged photo evidence and custom attributes to any mapped point or boundary.

🔒 Offline Maps & Privacy
• Your data stays on your device. Maps are stored locally, and you have total control over when and how to share your land data.

Who is this app for?
• Farmers and agronomists for farm mapping and crop planning.
• Landowners and real estate agents measuring property lines.
• Construction and civil engineering professionals.
• Land surveyors needing a reliable RTK GPS companion app.

Download SSField today and start mapping smarter. Get unlimited, free field measurements instantly, with powerful professional tools ready to unlock when you need them!