Comparison

Topo Maps US 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

Topo Maps US

Access and download detailed topographic maps of the United States for offline use. Track your location, mark waypoints, and record your routes for outdoor activities. Navigate with direction arrows and measure distances on the map.

Highlights
  • Download US topographic maps
  • Offline map viewing
  • GPS location tracking
  • Add and import waypoints (flags)
  • Import and share GPX/LOC files
  • Record and share trails
  • Elevation profile charts
Features
Read full description

Download USGS topographic maps of the United States and use them offline, with no account and no subscription. Topo Maps US is built for people who go where cell service doesn't: hikers, backpackers, hunters, anglers, paddlers, mountain bikers, geocachers, and anyone who wants a real topographic map in their pocket. MAPS Choose from three USGS map layers: standard topographic, aerial imagery with a topographic overlay, or plain aerial imagery. OFFLINE Tap the map squares you want and download them before you leave. Downloaded maps work with no Internet connection and use no cell data in the field. TRAILS AND POINTS OF INTEREST BUILT IN Every map download includes the trails, summits, lakes, campsites, and other named places in that area from OpenStreetMap, so you can search them by name while you're offline. TRAIL RECORDING Record where you go. Recorded trails show your path on the map with distance, elapsed time, and average speed. Recording stops automatically when you start driving, and any drive at the start or end of a trail is trimmed off. ELEVATION PROFILES Every recorded or imported trail gets an elevation profile with distance labels and color-coded grade shading. Drag along the chart to see the matching point on the map, its elevation, and the time you passed it. FLAGS Mark your current location or any spot on the map. Flags record coordinates and elevation, and you can add notes and organize them by color: geocaches, trailheads, summits, camps, and so on. NAVIGATION Pick a flag and follow the direction arrow, driven by your compass heading, with the distance remaining. Handy for geocaching and for finding your way back to camp or the car. LOCATION See where you are on the map, your elevation, speed, and the accuracy of the GPS fix. MEASURE Trace a route on the map to measure its distance, then save it as a trail to follow later. IMPORT AND SHARE Import trails and waypoints from GPX files and geocache LOC files. Share your flags and trails by email, Messages, or AirDrop as standard GPX files that work with any GPS unit or mapping software. Back up your maps and data to a computer over Wi-Fi. Designed for iPhone and iPad. Note: Continued use of GPS in the background can noticeably reduce battery life.

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

Topo Maps US4 screens
Offline Map Data Generator4 screens

Verdict

The call

The clearest difference is in-app purchases: Topo Maps US at none against Offline Map Data Generator's 6. Topo Maps US also leads on update cadence (every 2 months vs every 7 months). On price, ads, device support and iOS requirement 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. Offline Map Data Generator sells 6 in-app purchases, starting at $19.99 per year. Topo Maps US asks for nothing beyond the download.

UpkeepUpdate frequency

Topo Maps US ships an update every 2 months, Offline Map Data Generator every 7 months. The most recent releases landed on October 11, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 8 level
Topo Maps US versus Offline Map Data Generator: the parameters behind the verdict, then further details
ParameterTopo Maps USOffline Map Data Generator
PriceFreeFree
Rating4.4 (213 ratings) — better—
Positive reviews87.5% of reviews—
Number of ratings213 — better—
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size5 MB187 MB
Age rating4+17+
DeveloperDC Cloud Apps, LLCTech Maven GeoSpatial LLC

Bugs and requests

Topo Maps US

Reported bugs

8 issues
  • White and gray blocks appearing on downloaded offline maps
  • Route recording stops unexpectedly mid-hike
  • High battery drain during route tracking
  • GPX file import issues in iOS 13+
  • Map display issues near borders
Show 3 more
  • Flags cluttering the view
  • Inconsistent zoom functionality
  • Route tracking drops without saving

Requested features

18 requests
  • Pause/resume tracking during hikes
  • Search feature for trails and landmarks
  • Apple Watch app support
  • CarPlay integration
  • Slope shading visualization
Show 13 more
  • Ability to select and download multiple tiles at once
  • Background map downloading
  • Map transfer between devices
  • iCloud backup for GPS tracks
  • Older USGS topographic map versions
  • Time stamps in GPX export for fitness tracking
  • Quadrangle identification display
  • Built-in compass with map orientation
  • Laptop map manager for easier updates
  • Community Q&A section
  • Multiple color options for waypoints
  • Auto-save feature for long recordings
  • Larger downloadable map areas

Offline Map Data Generator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Topo Maps US

No 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

Questions

Is Topo Maps US free?
Topo Maps US is free to download, with no in-app purchases.
Is Offline Map Data Generator free?
Offline Map Data Generator is free to download, with in-app purchases available.
Do Topo Maps US or Offline Map Data Generator have ads?
Neither Topo Maps US nor Offline Map Data Generator shows ads.
Which is updated more often, Topo Maps US or Offline Map Data Generator?
Topo Maps US ships an update every 2 months, and Offline Map Data Generator every 7 months. Most recently, Topo Maps US was updated on October 11, 2026 and Offline Map Data Generator on September 22, 2026.

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