# GMCMap vs RadMap

The clearest difference is ads: GMCMap at none against RadMap's shown. RadMap's advantage is update cadence (every 9 days vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

GMCMap ships an update every 5 months, RadMap every 9 days. The most recent releases landed on September 22, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | GMCMap | RadMap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (19 ratings)](https://appshunter.io/ios/app/gmcmap/id6459882680/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 27 MB | 24 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GQ Electronics LLC](https://appshunter.io/developer/1379843069) | [Byung Kwon Jeon](https://appshunter.io/developer/945226607) |

## What reviewers say

### GMCMap

[App page](https://appshunter.io/ios/app/gmcmap/id6459882680)

This app provides a real-time radiation map of the world, displaying current radiation levels from monitoring stations globally. It features an interactive map, historical data, and trend analysis for comprehensive environmental vigilance.

**Highlights:** Real-time radiation data, Global coverage map, Interactive map interface, Historical data and trends, Mobile convenience

**In-app purchases:** none


### RadMap

[App page](https://appshunter.io/ios/app/radmap-radiation-map/id6800562465)

**In-app purchases:** none


## Frequently asked questions

### Is GMCMap free?

GMCMap is free to download, with no in-app purchases.

### Is RadMap free?

RadMap is free to download, with no in-app purchases.

### Do GMCMap or RadMap have ads?

RadMap shows ads; GMCMap does not.

### Which is updated more often, GMCMap or RadMap?

GMCMap ships an update every 5 months, and RadMap every 9 days. Most recently, GMCMap was updated on September 22, 2026 and RadMap on October 9, 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.*