Geo Data Collector

Offline field data collection with a form designer built in

A professional field data collection app that works completely offline — no server, no feature service, no proprietary formats. Crews design forms in the app or on the web form builder, capture points, lines and polygons with photos, then export to GeoJSON or GeoPackage.

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Built with

Platforms: iOS.

01Capabilities

What Geo Data Collector does

Flexible form designer and ad-hoc in-app form building (forms are shareable JSON)

Point, line and polygon capture with point averaging and point offset

Fully offline — all data stored on the device, no backend required

Review, edit and delete records; jump to any record on the map

Photos from camera or gallery attached to records

Attribute table with search for collected and user-loaded data

Vector-tile basemap with 11 styles incl. terrain/topo, 3D buildings, hybrid

Optional offline map data for the user's area of interest

02Data & services

Formats and services supported

Output

GeoJSON
GeoPackage vector features

User-loaded data

GPKG vector & raster tiles
GeoJSON with styling
MBTiles raster & vector

Basemaps

OpenStreetMap vector tiles (8+ styles)
Contour lines
Hillshade
Satellite imagery
Esri raster basemaps
GADM boundaries

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GeoNames Map Explorer

NGA foreign and USGS domestic place names, searchable on a vector-tile map

Several of the GIS apps were built and are published in partnership with Tech Maven Geospatial.

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