Comparison

Survey Help vs Offline Map Data Generator

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

Head to head
About

Survey Help

This app helps you find specific locations by calculating your distance to up to four pre-set points. It continuously updates your proximity as you move, making it useful for locating geotagged spots. You can save and retrieve sets of locations for later use.

Highlights
  • Input up to four GPS locations
  • Real-time distance updates
  • Locate geotagged spots
  • Save and retrieve location sets
  • Input from current location
Features
Read full description

This iPhone app allows the input of up to four locations (latitude and longitude) and provides the user's distance from each location. As the user moves the distance to the selected location updates regularly. If you have a geotag location this app could help you find the location. Four locations maximum. Locations can be entered from current location. Sets of four locations can be stored on the device for later retrieval.

About

Offline Map Data Generator

Features
Read full description

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!

Screenshots

Survey Help2 screens
Offline Map Data Generator4 screens

Verdict

The call

The clearest difference is update cadence: Offline Map Data Generator at every 7 months against Survey Help's every 14 months. Offline Map Data Generator also leads on device support (3 vs 1) and iOS requirement (14.0 vs 18.6). On price, 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. Survey Help sells 1 one-off in-app purchase and Offline Map Data Generator sells 6 in-app purchases, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Survey Help ships an update every 14 months, Offline Map Data Generator every 7 months. The most recent releases landed on October 3, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
Survey Help versus Offline Map Data Generator: the parameters behind the verdict, then further details
ParameterSurvey HelpOffline Map Data Generator
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 14 monthsEvery 7 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.614.0 — better
Further details — not scored
Size7 MB187 MB
Age rating4+17+
DeveloperDavid BourneTech Maven GeoSpatial LLC

In-app purchases

1 purchases

Survey Help

One-time1
  • Load External Location Sets$0.99
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

Questions

Is Survey Help free?
Survey Help is free to download, with in-app purchases available.
Is Offline Map Data Generator free?
Offline Map Data Generator is free to download, with in-app purchases available.
Do Survey Help or Offline Map Data Generator have ads?
Neither Survey Help nor Offline Map Data Generator shows ads.
Which is updated more often, Survey Help or Offline Map Data Generator?
Survey Help ships an update every 14 months, and Offline Map Data Generator every 7 months. Most recently, Survey Help was updated on October 3, 2026 and Offline Map Data Generator on September 22, 2026.

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