Tech Maven Geospatial · NGA GEOINT App Store heritage

GeoNames Map Explorer

Premier mapping for situational awareness in unfamiliar terrain and foreign countries — NGA Foreign GeoNames & USGS domestic GNIS, optimized for the field, with audio pronunciations and true offline AOI.

18M+GeoNames points
250MPOI across five sources
2020IGAPP Grand Challenge
GeoNames Map Explorer — map search

Geo Request API

Five authoritative sources. One search.

Online and offline spatial searching across government and open place data — for the AOI you deploy into.

USGSGNIS Domestic
NGAForeign GeoNames
OSMPoints of Interest
OvertureMaps Places
FoursquarePOI

About the product

Built with NGA & DoD feedback. Now public.

NGA National Geospatial-Intelligence Agency
DoD Department of Defense

Originally designed and sold exclusively to U.S. Government personnel via the NGA GEOINT App Store — now available on the Apple App Store. Developed from vendor opportunity packages (GeoNames, GeoCognizant, Talking Map, and others) and years of operator conversations across defense and intelligence.

This app is not affiliated with the U.S. Government. The website, data API, downloading service, and iOS app are independent products of Tech Maven Geospatial, LLC. GeoNames Map Explorer is no longer on the GEOINT App Store — Apple App Store only.

Recognition

2020 IGAPP Grand Challenge Winner

Award-winning geospatial mobile capability — engineered for D-DIL environments where commercial maps fail and pronunciation of foreign place names matters.

Map tools screen
GeoNames map search UI

iPhone Pro · operator UI

Core mission capabilities

Search. Load. Download. Disconnect.

01 / ADVANCED SEARCH

Feature-class control

Display GeoNames by feature class. Scale labels by zoom. Constrain queries with spatial search over the current map extent or AOI.

02 / YOUR DATA

Load local map data

GeoJSON & GPKG vectors, raster and vector tiles in MBTILES / GPKG (EPSG:3857). In-app converter for additional formats.

03 / AOI OFFLINE

Download & operate D-DIL

Pull a custom area of interest once — then map, search, and audio playback continue disconnected from the commercial internet.

GeoNames layers on the map — AOIs, MGRS, GARS
GeoNames on the map
GeoNames Map Explorer live demo
Live demo

What is GeoNames?

Government place-name intelligence — mobile optimized.

NGA Foreign GeoNames (GNS) and USGS BGN domestic GNIS produce place names, POIs, and geographic features. Tech Maven processes and updates this data monthly for mobile search, tiles, and offline AOI packages.

Administrative
Populated Places
Locality / Area
Streets & Rail
Hypsography
Vegetation
Hydrographic
Undersea
Spot Features

Industries & markets

One platform. Many missions.

From defense and border protection to wildland fire, marine ops, and humanitarian response.

All markets

User loaded data & tools

Each capability — tab, demo, Read More

Same home structure as the live product site: one tab per feature, with media and a clear next step.

MBTILES Vector Tiles

Load your own MBTiles vector tiles from device storage and put them on the map in minutes — no server round-trip, no proprietary package. Style fill color, opacity, and labels in the field so AOI briefs stay readable when the basemap alone is not enough.

Built for operators who already ship clipped tile sets: drop the file in, toggle visibility, and keep working offline. Single-layer gzipped PBF tiles are supported today inside the tile_data blob.

  • Upload via User Device Map Data
  • Field styling — fill, opacity, labels
  • Works with offline AOI workflows

OSM-Overpass API

Query OpenStreetMap live for points of interest inside a geographic area you draw or define — then drop those results onto the same map you already use for GeoNames and AOI packs.

Pick a category, then a type (for example Amenity → Bank / ATM), run the search, and review matches in context. Ideal when you need fresh local amenities without shipping a custom POI database.

  • Category → type Overpass queries
  • Results on your map / AOI
  • Works alongside GeoNames search
GeoJSON and GPKG on device

GeoJSON and GPKG vector features

Load your own vector packages from device storage — GeoJSON and GeoPackage — and put them on the map without a server round-trip. Change fill, stroke, opacity, and labels in the field so layers stay readable on the basemap you brief from.

Inspect attributes in the tabular grid, toggle visibility, and keep working offline when the network is the risk. Built for teams that already ship clipped GPKG / GeoJSON AOI sets.

  • GPKG + GeoJSON from User Device Map Data
  • Field styling — fill, opacity, labels
  • Attribute inspection next to the map
Attribute grid with search

Attribute Grid with Search

Open a layer’s attributes in a searchable tabular grid — zoom to a row, scan fields, and keep the map and table in the same workflow. Built for operators who need to find a name, ID, or county value fast without leaving the AOI view.

Filter and search across columns so dense GPKG tables stay usable on a phone or tablet, then jump back to the feature on the map when you need spatial context.

  • Searchable attribute table
  • Zoom-to-feature from a row
  • Works with loaded GPKG / vector layers
File Manager cloud integration

File Manager — Cloud Integration

Bring documents, images, and map packages onto the device from local storage or cloud sources such as Dropbox and Box — then keep them organized next to the layers you already use on the map.

Built for field handoffs: pull a briefing PDF, a geotagged photo set, or a GPKG package without juggling a separate file app. Pair with Office Docs viewer and Wifi Share when you need to open or move those files in the same stack.

  • Device storage + cloud import
  • Organize packages beside map data
  • Feeds Office Docs and Wifi Share
Wifi Share between devices

Wifi Share

Move map packages, documents, and media between devices on the same Wi‑Fi network — including uploads to iPhone and iPad — when USB cables and cloud accounts are not practical in the field.

Useful for team handoffs at a staging site: one operator finishes an AOI package, another pulls it over local wifi, and both stay on the same GeoNames Map Explorer stack without waiting on backhaul.

  • Same-network device sharing
  • iPhone / iPad friendly transfers
  • Pairs with File Manager packages
View Office Docs and photos

View Office Docs & Photos

Open Word, PowerPoint, Excel, PDFs, and images from File Manager without bouncing to another app. Keep the briefing, annex, or site photo next to the map you are already using for the AOI.

Built for operators who carry mixed packages — a PDF overlay plan, a spreadsheet of points, and geotagged photos — and need them readable on device when connectivity is thin.

  • Word, PowerPoint, Excel, PDF, images
  • Opens from File Manager packages
  • Stays in the same field workflow

Geolocation

See your position as a blue pin on the map and tune how tracking and map-center behavior work — so device location and the AOI view stay aligned when you move, pause, or recenter.

Use the geolocation widget for device position and map center, then pair with go-to-coordinates, compass, and measure tools when you need more than a pin on the basemap.

  • Blue-pin device location on the map
  • Tracking / map-center settings
  • Works with go-to and measure tools

GeoNames Data

Search and map NGA Foreign GeoNames and USGS domestic GNIS — the place-name authority operators rely on abroad and at home. Datasets are updated regularly and packaged so offline AOI search stays fast when the tower drops.

Pronunciations, feature classes, and offline packs sit beside the same basemap, weather, and user layers you already brief from — not a separate gazetteer app.

  • NGA Foreign GeoNames + USGS GNIS
  • Optimized for offline AOI search
  • Updated regularly for field use

Capability demos

Videos from the product home

Coordinate tools, GARS, offline search, satellite styles, placemarks — each with its own Read More.

Coordinate Converter

Convert coordinates and vector formats in-app.

Read More →

Geo Location Setting

Tune tracking and map-center geolocation behavior.

Read More →

3D Buildings

Explore 3D building context on supported basemaps.

Read More →

GO TO GARS Code

Navigate with GARS grids and go-to-code workflows.

Read More →

OSM Overpass POI Search

Search amenities and POIs inside your drawn AOI.

Read More →

Satellite in OSM Styles

Satellite imagery basemap with OSM-style overlays.

Read More →

Offline GeoNames & Search

AOI offline packages — search and pronunciation without the net.

Read More →

Placemarks

Drop and manage placemarks for field orientation.

Read More →

Military Symbology

APP6 / MIL-STD-2525C symbology on the map.

Read More →
GeoNames TAK Enabled

Team Awareness Kit

Earth Intelligence for TAK

Beyond ATAK / iTAK — GeoNames vector basemaps with team SA on the same map.

  • Join TAK ServerBYO secure server
  • Share locationSee the team on map
  • Geofencing · GeoChatAlerts, chat, data share
  • Vector tile basemapsReference data included
Explore GeoNames TAK
Meshtastic
Broadcast
Symbology

BYO TAK Server · Tech Maven does not host TAK infrastructure

Product launch · Tech Maven Geospatial

GeoNames Map Explorer iOS

Mission Ready

Operator tools that already ship — plus a major module on the way. This is not a minor update. This is the next chapter of the stack.

Already in the fight

Mission Ready capabilities

  • App6 / MilSpec2525 & other symbology
  • Range Rings & Bullseye
  • Distance Bearing
  • GARS & MGRS
  • Image Overlay
  • Measure tools and advanced widgets

Coming Soon

Team Collaboration Module
and TAK Server Sync

Shared situational awareness — join TAK Server, share location, see the team, geofence, chat, and data share on the map.

  • Join TAK Server · BYO
  • Location share · team SA
  • Geofencing · chat · data sharing
  • Vector tile basemaps & reference data
Explore GeoNames TAK

Evaluate at no obligation

Seven-day fully unlocked trial

Same stack your operators will deploy — white-label and source-code licenses available for enterprise and government programs.

Windows version in active development