# Topography vs Offline Map Data Generator

The clearest difference is price: Offline Map Data Generator at Free against Topography's $3.99. Offline Map Data Generator also leads on iOS requirement (14.0 vs 16.1). Topography's advantage is in-app purchases (none vs 6) and update cadence (every 2 months vs every 7 months). On ads and device support there is nothing between them.

Offline Map Data Generator is free to download; Topography costs $3.99 up front. Offline Map Data Generator sells 6 in-app purchases, starting at $19.99 per year. Topography asks for nothing beyond the download.

Topography ships an update every 2 months, Offline Map Data Generator every 7 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Topography | Offline Map Data Generator |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/topography/id622591557/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 58.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Paid | — |
| Size | 2 MB | 187 MB |
| Requires iOS | 16.1 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Georgios Graikousis](https://appshunter.io/developer/622591560) | [Tech Maven GeoSpatial LLC](https://appshunter.io/developer/1459067502) |

## What reviewers say

### Topography

[App page](https://appshunter.io/ios/app/topography/id622591557)

This tool helps civil engineers, architects, and surveyors measure surface areas and convert coordinates. It allows users to calculate polygon areas, convert coordinates to UTM EGSA87 Datum, and export measurements in DXF, KML, or TXT formats via email.

**Highlights:** Convert coordinates to UTM EGSA87 Datum, Calculate polygon area in square meters, Export measurements in DXF format, Export measurements in KML format, Export measurements in TXT format, Input coordinates manually

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Offline Map Data Generator

[App page](https://appshunter.io/ios/app/offline-map-data-generator/id6448957147)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| App Subscription | $19.99 | per year |
| OMDG Elevate API | $24.99 | per year |
| OMDG Vector Conversion API | $24.99 | per year |
| OMDG DEM Downloader | $24.99 | per 7 days |
| Geo Request AOI | $49.99 | per 7 days |
| Offline Map Data Generator | $999.99 | per year |


## Frequently asked questions

### Is Topography free?

Topography costs $3.99, 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 Topography or Offline Map Data Generator have ads?

Neither Topography nor Offline Map Data Generator shows ads.

### Which is updated more often, Topography or Offline Map Data Generator?

Topography ships an update every 2 months, and Offline Map Data Generator every 7 months. Most recently, Topography was updated on November 6, 2026 and Offline Map Data Generator on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*