Comparison

Map Discovery vs GR Demo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Map Discovery

Features
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Users are able to load GIS mapping data: mbtiles, gpkg, Shapefiles (zipped), KML, GPX, CSV, GeoJSON As well as connect to basemaps, OGC WMS, XYZ Tile servers (with support for more services coming soon) Open Street Map Vector tiles with different stylesheets basemap and many raster tile basemaps are available from multiple providers. The app has a data catalog JSON format feature that allows for configuring online mapping services (ESRI MapServer, ESRI ImageServer, ESRI FeatureServer, OGC WMS, OGC WMTS Tiles,XYZ/TMS Tiles,OGC WFS) The app supports data creation and editing digitizing/drawing vector features. Can create new geojson data with any properties you want defined and view attribute/grid and perform searching OGC WFS-T Transactional data creation and Editing is available for users that have GeoServer, QGIS Server, MapServer and others. Analysis tools like measure distance and area, map swipe, getting elevation, viewing attribute tables Search open street map places and geographies via OSM Nominatim Search. It also does address geocoding. The app is very customizable to your needs the units of measure can be changes as well as Display of Map Coordinates ( Latitude and Longitude, MGRS, GARS) and Scale bar The app is also able to connect to our other app Tile Server for iOS and access data being served by that app.

About

GR Demo

Features
Read full description

GR Demo是一款方便快捷的产品演示辅助工具,主要内容为多款简易的应用demo合集,可连接Gemred团队开发的多款产品并简单演示其无线连接、数据传输等核心功能,帮助相关人员更直观地讲解产品亮点。 GR Demo is a handy product demonstration auxiliary tool, and its main content is a collection of various simple application demos. GR Demo can connect to various products developed by the GemRed team and demonstrate their core functions such as wireless connection and data transmission, helping people explain product highlights intuitively.

Screenshots

Map Discovery4 screens
GR Demo4 screens

Verdict

The call

The clearest difference is iOS requirement: Map Discovery at 12.0 against GR Demo's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 6 weeks. Both last shipped on October 10, 2026.

Scorecard1 real difference · 5 level
Map Discovery versus GR Demo: the parameters behind the verdict, then further details
ParameterMap DiscoveryGR Demo
PriceFreeFree
Update frequencyEvery 6 weeksEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size102 MB29 MB
Age rating4+4+
DeveloperTech Maven GeoSpatial LLCGemRed

In-app purchases

None

Map Discovery

No in-app purchases

None

GR Demo

No in-app purchases

Questions

Is Map Discovery free?
Map Discovery is free to download, with no in-app purchases.
Is GR Demo free?
GR Demo is free to download, with no in-app purchases.
Do Map Discovery or GR Demo have ads?
Neither Map Discovery nor GR Demo shows ads.
Which is updated more often, Map Discovery or GR Demo?
Map Discovery ships an update every 6 weeks, and GR Demo every 6 weeks. Most recently, Map Discovery was updated on October 10, 2026 and GR Demo on October 10, 2026.

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