# Local Scale Factor vs Leica DX Field Shield

The clearest difference is update cadence: Local Scale Factor at every 2 months against Leica DX Field Shield's every 37 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Local Scale Factor ships an update every 2 months, Leica DX Field Shield every 37 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Local Scale Factor | Leica DX Field Shield |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 37 months |
| Monetization | Free | — |
| Size | 65 MB | 116 MB |
| Requires iOS | 10.3 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NRG Surveys Ltd](https://appshunter.io/developer/1334623382) | [Leica Geosystems AG](https://appshunter.io/developer/532477810) |

## What reviewers say

### Local Scale Factor

[App page](https://appshunter.io/ios/app/local-scale-factor/id1353822948)

This tool calculates local scale factors and Cartesian coordinates from WGS84 GPS positions. It supports numerous local grid transformations and can convert between local postcodes and geodetic positions. It also offers map navigation to selected coordinates.

**Highlights:** Local scale factor calculation, Cartesian coordinate conversion, WGS84 GPS position input, Local grid transformations, Postcode to geodetic position conversion, Map navigation

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

**In-app purchases:** none


### Leica DX Field Shield

[App page](https://appshunter.io/ios/app/leica-dx-field-shield/id1410081007)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Local Scale Factor free?

Local Scale Factor is free to download, with no in-app purchases.

### Is Leica DX Field Shield free?

Leica DX Field Shield is free to download, with no in-app purchases.

### Do Local Scale Factor or Leica DX Field Shield have ads?

Neither Local Scale Factor nor Leica DX Field Shield shows ads.

### Which is updated more often, Local Scale Factor or Leica DX Field Shield?

Local Scale Factor ships an update every 2 months, and Leica DX Field Shield every 37 months. Most recently, Local Scale Factor was updated on October 19, 2026 and Leica DX Field Shield on October 25, 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.*