# RadonPRO vs GMCMap

The clearest difference is rating: RadonPRO at 5.0 against GMCMap's 4.1. RadonPRO also leads on update cadence (every 3 weeks vs every 5 months). GMCMap's advantage is ratings volume (19 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

RadonPRO holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: GMCMap has 19 ratings behind it against 1, so its average is the more settled of the two.

RadonPRO ships an update every 3 weeks, GMCMap every 5 months. The most recent releases landed on September 18, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | RadonPRO | GMCMap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/radonpro/id1157657879/reviews)** | [4.1 (19 ratings)](https://appshunter.io/ios/app/gmcmap/id6459882680/reviews) |
| Number of ratings | 1 | **19** |
| Positive reviews | — | 70.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 36 MB | 27 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gregory Enterprises](https://appshunter.io/developer/1157657878) | [GQ Electronics LLC](https://appshunter.io/developer/1379843069) |

## What reviewers say

### RadonPRO

[App page](https://appshunter.io/ios/app/radonpro/id1157657879)

Connect wirelessly to your RadonPRO monitor to start tests and download data without an internet connection. Generate automatic PDF reports for unlimited customer management in the cloud.

**Highlights:** Wireless connection to RadonPRO monitor, Start tests remotely, Download data wirelessly, Unlimited cloud reporting, Automatic PDF report generation, Customer management

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is RadonPRO free?

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

### Is GMCMap free?

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

### Which has better reviews, RadonPRO or GMCMap?

RadonPRO is rated higher. RadonPRO averages 5.0 out of 5 from 1 ratings, while GMCMap averages 4.1 from 19 ratings.

### Do RadonPRO or GMCMap have ads?

Neither RadonPRO nor GMCMap shows ads.

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

RadonPRO ships an update every 3 weeks, and GMCMap every 5 months. Most recently, RadonPRO was updated on September 18, 2026 and GMCMap on September 22, 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.*