# Topography vs WGS84

The clearest difference is review sentiment: Topography at 59% against WGS84's 0%. WGS84's advantage is price ($1.99 vs $3.99) and iOS requirement (13.0 vs 16.1). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Topography costs $3.99 and WGS84 $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Topography | WGS84 |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/topography/id622591557/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **58.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | Paid |
| Size | 2 MB | 3 MB |
| Requires iOS | 16.1 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Georgios Graikousis](https://appshunter.io/developer/622591560) | [HUNG HSUN LIN](https://appshunter.io/developer/482586427) |

## 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


### WGS84

[App page](https://appshunter.io/ios/app/wgs84/id657324657)

This app measures coordinates in WGS84 format, offering both decimal degrees and degrees-minutes-seconds. It allows users to export data as CSV and attach photos, videos, or voice notes to measurements.

**Highlights:** WGS84 coordinate measurement, Decimal degrees format, Degrees-minutes-seconds format, CSV data export, Attach photos, videos, voice records, Download media via iTunes

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Topography free?

Topography costs $3.99, with no in-app purchases.

### Is WGS84 free?

WGS84 costs $1.99, with no in-app purchases.

### Do Topography or WGS84 have ads?

Neither Topography nor WGS84 shows ads.

### Which is updated more often, Topography or WGS84?

Topography ships an update every 2 months, and WGS84 every 2 months. Most recently, Topography was updated on October 19, 2026 and WGS84 on October 15, 2026.

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