# MAGE by NGA vs Visual Displacement Meter

The clearest difference is update cadence: Visual Displacement Meter at fortnightly against MAGE by NGA's every 5 weeks. Visual Displacement Meter also leads on iOS requirement (15.0 vs 18.6). 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.

MAGE by NGA ships an update every 5 weeks, Visual Displacement Meter fortnightly. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | MAGE by NGA | Visual Displacement Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/mage-by-nga/id1032815042/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 55 MB | 82 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [National Geospatial-Intelligence Agency](https://appshunter.io/developer/935822508) | [Inteagle Information Technology(Dongguan) Co., Ltd.](https://appshunter.io/developer/1720865930) |

## What reviewers say

### MAGE by NGA

[App page](https://appshunter.io/ios/app/mage-by-nga/id1032815042)

This app enables real-time field awareness by allowing users to create and share geotagged reports with media. It supports offline functionality and customizable geospatial data layers for team collaboration.

**Highlights:** Geotagged field reports, Media sharing (photos, videos, voice), Real-time location sharing, Offline functionality, Local geospatial data layers, Customizable for team needs

**In-app purchases:** none


### Visual Displacement Meter

[App page](https://appshunter.io/ios/app/visual-displacement-meter/id6749835043)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MAGE by NGA free?

MAGE by NGA is free to download, with no in-app purchases.

### Is Visual Displacement Meter free?

Visual Displacement Meter is free to download, with no in-app purchases.

### Do MAGE by NGA or Visual Displacement Meter have ads?

Neither MAGE by NGA nor Visual Displacement Meter shows ads.

### Which is updated more often, MAGE by NGA or Visual Displacement Meter?

MAGE by NGA ships an update every 5 weeks, and Visual Displacement Meter fortnightly. Most recently, MAGE by NGA was updated on September 10, 2026 and Visual Displacement Meter on September 21, 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.*