Comparison

Offline Map Data Generator vs Centinela

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

Head to head
About

Offline Map Data Generator

Features
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Discover the Ultimate Mapping Experience with Tech Maven Geospatial Unleash the power of geospatial data with Tech Maven Geospatial, your all-in-one mapping solution available now on iOS! Whether you're a seasoned explorer, a professional in the field, or an enthusiast, our app provides unparalleled features to elevate your mapping endeavors. Key Features: 1. Seamless Data Access: Download online mapping URLs, including dynamic and cached mapping services and tile layers. Access ESRI MapServer, FeatureServer, ImageServer, VectorTileServer, PBF/MVT XYZ Vector Tile URLs, OGC API Tiles/XYZ/TMS, and more. Future versions will include downloading capabilities from other providers (OGC WFS/OGC API Features, OGC WMS/OGC API Maps, OGC WMTS). 2. Pre-configured Tile Layers and Conversion Tools: Support for pre-configured tile layers and the ability for ATAK/WINTAK users to import tile.xml configurations. In-app Vector Data Converter: Convert GIS Vector Data to optimized formats like MBTILES Vector Tiles, GPKG Vector Features, GeoJSON, or KML. Compatible with various file formats including ESRI FileGDB, Shapefile, MapInfo, GPX, CSV, and more. 3. Live Event Driven Data Feeds: Stay updated with live data feeds from ESRI FeatureServer, Network Link KML, and GeoRSS Feeds. Download data at specified frequencies and convert to GeoJSON (convertible to KML in-app for ATAK or iTAK). 4. Data Visualization and Sharing: Visualize downloaded data and user-loaded data in the Map Viewer. Supports GeoJSON, raster tiles from MBTILES and GPKG, and vector tiles from MBTILES. 5. Access Tech Maven Geospatial’s Data APIs: Explore our optional purchases to access Tech Maven Geospatial’s data APIs, offering pre-staged data, AOI (Area of Interest/Operation) APIs, Digital Elevation Model Downloaders, and more. Please note: Users are responsible for the terms of use/service and access to the data they download from the provided URLs. For detailed terms and conditions, please refer to our End User License Agreement (EULA): https://offlinedatadownloader.techmaven.net/eula/ Download Tech Maven Geospatial today and embark on your mapping journey with confidence and precision!

About

Centinela

Features
Read full description

CENTINELA: TACTICAL NAVIGATION Centinela is a tactical navigation app for iPhone, iPad and Apple Watch that brings together map, tools and coordination in a single interface. Plan, visualise and share information over digital maps, and connect with the TAK ecosystem when the operation requires it. ONLINE AND OFFLINE MAPS Work with base maps from Apple, Google and IGN (standard, satellite, hybrid, terrain and topographic). Import and render offline cartography to operate with no coverage, with support for CompeGPS/TwoNav .rmap and handling of GeoTIFF, MBTiles, KML/KMZ, GeoPDF, JNX, MAP and IMP. Activate, hide, reorder, share and overlay your maps on top of the base map. WAYPOINTS AND ROUTES Mark key points by tapping the map, entering coordinates or importing them from a file. Organise your waypoints into lists, assign icons and send them to the server. Plan routes and record your tracks in real time to analyse or repeat them. DRAWING AND MEASURING Draw lines, polygons, areas, annotations and operational symbols directly over the terrain. Quickly calculate distances, segments and references to make decisions on the map. TAK ECOSYSTEM Connect Centinela to compatible TAK servers and exchange Cursor-on-Target (CoT) events. Discover and exchange positions, routes and markers on the local network with ATAK and other Centinela devices. Keep your position updated even in the background. MISSIONS, CONTACTS AND CHAT Group layers, routes, waypoints, contacts, drawings and resources by mission to preserve context and traceability. Sync information across users and devices, manage contacts and teams with connection and last-position indicators, and communicate through operational chat. LIVE VIDEO Stream live video and audio to the configured server and play back video feeds to improve observation and tracking on the ground. MEDEVAC Quickly complete a 9-line medical evacuation form and transmit critical information when it matters most. DATA PACKAGES Prepare and share structured sets of tactical information, including TAK-compatible flows, to distribute operational context across the team. APPLE WATCH Check your location, waypoints and key references from your wrist, without taking out your iPhone. PRIVACY Centinela uses location, camera, microphone and the local network only to provide its navigation, capture and coordination features. It does not sell personal data or use it for personalised advertising. Synced information is only sent to the servers that you or your organisation configure. Centinela is designed for professionals who need precise navigation, offline cartography and on-the-ground coordination. Requires iOS/iPadOS 17 or later and watchOS 10 or later.

Screenshots

Offline Map Data Generator4 screens
Centinela4 screens

Verdict

The call

The clearest difference is update cadence: Centinela at every 6 days against Offline Map Data Generator's every 7 months. Offline Map Data Generator's advantage is iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Offline Map Data Generator sells 6 in-app purchases, starting at $19.99 per year and Centinela sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Offline Map Data Generator ships an update every 7 months, Centinela every 6 days. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard2 real differences Β· 4 level
Offline Map Data Generator versus Centinela: the parameters behind the verdict, then further details
ParameterOffline Map Data GeneratorCentinela
PriceFreeFree
Update frequencyEvery 7 monthsEvery 6 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS14.0 β€” better17.0
Further details β€” not scored
Size187 MB153 MB
Age rating17+4+
DeveloperTech Maven GeoSpatial LLCJesus Alvarez Ruiz

In-app purchases

6 purchases

Offline Map Data Generator

Subscriptions6
  • App Subscription7 Days trial$19.991 Year
  • OMDG Elevate API7 Days trial$24.991 Year
  • OMDG Vector Conversion API7 Days trial$24.991 Year
Show 3 more
  • OMDG DEM Downloader$24.997 Days
  • Geo Request AOI$49.997 Days
  • Offline Map Data Generator7 Days trial$999.991 Year
5 purchases

Centinela

One-time5
  • Tip$0.99
  • Generous tip$1.99
  • Very generous tip$4.99
Show 2 more
  • Huge tip$8.99
  • Fanatical tip$19.99

Questions

Is Offline Map Data Generator free?
Offline Map Data Generator is free to download, with in-app purchases available.
Is Centinela free?
Centinela is free to download, with in-app purchases available.
Do Offline Map Data Generator or Centinela have ads?
Neither Offline Map Data Generator nor Centinela shows ads.
Which is updated more often, Offline Map Data Generator or Centinela?
Offline Map Data Generator ships an update every 7 months, and Centinela every 6 days. Most recently, Offline Map Data Generator was updated on September 22, 2026 and Centinela on September 21, 2026.

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