# HeatMapper vs RadonEye Pro

The clearest difference is update cadence: RadonEye Pro at every 4 weeks against HeatMapper's every 7 months. RadonEye Pro also leads on device support (3 vs 1) and iOS requirement (13.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.

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

HeatMapper ships an update every 7 months, RadonEye Pro every 4 weeks. The most recent releases landed on September 17, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | HeatMapper | RadonEye Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.8 (5 ratings)](https://appshunter.io/ios/app/radoneye-pro/id1458690374/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 weeks** |
| Monetization | — | Free |
| Size | 26 MB | 11 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Contractor Nation Corporation](https://appshunter.io/developer/1126353201) | [FTLab](https://appshunter.io/developer/897369751) |

## What reviewers say

### HeatMapper

[App page](https://appshunter.io/ios/app/heatmapper/id1282095564)

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

**In-app purchases:** none


### RadonEye Pro

[App page](https://appshunter.io/ios/app/radoneye-pro/id1458690374)

This app connects to a specialized hardware device to monitor radon levels in real-time. It automatically uploads data to a cloud server for professional home inspectors and radon specialists. The app offers Wi-Fi and Bluetooth connectivity for seamless data access.

**Highlights:** Real-time radon level monitoring, Wi-Fi and Bluetooth connectivity, Automatic data upload to cloud server, Professional radon detection, Dual ionization chamber system, Early reliable data output

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HeatMapper free?

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

### Is RadonEye Pro free?

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

### Do HeatMapper or RadonEye Pro have ads?

Neither HeatMapper nor RadonEye Pro shows ads.

### Which is updated more often, HeatMapper or RadonEye Pro?

HeatMapper ships an update every 7 months, and RadonEye Pro every 4 weeks. Most recently, HeatMapper was updated on September 17, 2026 and RadonEye Pro on September 7, 2026.

---

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