GIS Kit vs Geo Data Collector

Premier field collection and data viewer for iPhone and iPad. - No desktop GIS software required. - No prior GIS training required. - Completely offline capable. - Cache (download) open source topographic maps, street maps and satellite imagery straight from device. - Import ESRI Shapefiles and KML/KMZ files including attributes. - Attribute fields include: Alphanumeric (Description), Photos, numerical values, user defined list of values, addresses, websites, date & time, telephone number, check box. - Easily collect new point, line, and polygon features in the field by GPS or drawing manually. - Enter attribute values for each feature and/or add new attribute types at time of collection. - Create templates of user defined feature classes with custom attributes. - Comes loaded with numerous example feature templates for professional use in Forestry, Wetland Delineation, Stream Surveys, and Real Estate. - Import and export data wirelessly by email. Larger data sets can be imported/exported by connecting to any computer with itunes. - Organize by projects and layers - Best-in-class performance. Check our website to see videos, documentation and more information about the "Pro" version. Please note that all the features of the GIS Pro version (such as Shapefile export) are available through in-app purchase in this app as well. For Businesses: Please note that a separate license is required for each user or each device that is used by multiple users. See http://www.apple.com/legal/itunes/us/terms.html for details. Also see http://www.apple.com/business/vpp for information on purchasing in volume. Continued use of GPS running in the background can dramatically decrease battery life.

Geo Data Collector turns your iPhone or iPad into an offline-first field GIS for mapping, asset inspection, structured data collection, surveying calculations, and construction layout job preparation. FIELD DATA COLLECTION • Capture points, lines, and polygons with attributes and photos. • Build forms in the app or import shareable JSON form designs. • Mark fields as required or optional and use text, number, date, checkbox, radio-button, and selection controls. • Review, search, edit, delete, and return to collected features on the map. EXTERNAL GNSS, RTK & NTRIP • Connect a compatible Bluetooth GNSS receiver that outputs NMEA 0183. • Stream validated RTCM 3 corrections from NTRIP v1/v2 RTN or CORS casters to the external rover. • Monitor fix type, receiver-reported accuracy, DOP, satellite count, signal quality, correction age, and data freshness. • Apply configurable quality gates, stable-fix checks, and ECEF/ENU point averaging before capture. • Preserve observations, occupations, antenna information, quality decisions, and available coordinate-operation provenance in versioned archives. The external receiver computes the RTK position solution. Achievable accuracy depends on the receiver, antenna, environment, correction service, configuration, and field procedures. SURVEYING & GEODESY TOOLS • Planar COGO inverse and forward calculations. • WGS84 geodesic inverse and direct calculations. • Polygon area, perimeter, orientation, and centroid. • Slope distance, grade, inclination, and elevation difference. • Stakeout deltas, Bowditch traverse adjustment, and angular-closure diagnostics. • WGS84 ECEF/UTM operations, explicit control localization, and auditable geodesy reports. CONSTRUCTION LAYOUT PREPARATION • Create and manage layout jobs and design targets. • Import targets from supported GeoJSON and CSV/ASCII point files. • Configure metric, international-foot, or US-survey-foot units and horizontal/vertical tolerances. • Build a 2D site localization from control pairs and review residual diagnostics. • Export as-built CSV, stake-report JSON, and Markdown field reports. OFFLINE MAPS & OPEN DATA • Work with GeoPackage, GeoJSON, raster MBTiles, and vector MBTiles. • Use online and offline basemaps, including vector, terrain/topographic, hillshade, satellite, and boundary layers where available. • Browse searchable attribute tables and control layer styling, visibility, opacity, and display order. • Convert supported vector formats, including zipped Shapefile, KML, GPX, CSV, and WKT, into app-ready data. FIELD OPERATIONS • Measure distance and area, record GPS tracks, search OpenStreetMap, save spatial bookmarks, and view coordinates in multiple formats. • Use offline field projects, field editing workflows, and geodesy/control reports. • Share files through supported cloud, FTP, WebDAV, and local Wi-Fi workflows. • Connect TAK Server and Meshtastic workflows for team position and messaging. Core collection and offline mapping do not require a proprietary server-side database. Some capabilities require compatible external hardware, network or correction services, imported data, or an in-app purchase. Geo Data Collector is a field mapping and construction aid. It does not replace a licensed surveyor, legal boundary determination, instrument calibration, or required professional quality-control procedures.