# Atom Radiometer vs Sensor Technology Engineering

The clearest difference is update cadence: Atom Radiometer at monthly against Sensor Technology Engineering's every 7 months. Atom Radiometer also leads on iOS requirement (9.0 vs 13.0). 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.

Atom Radiometer ships an update monthly, Sensor Technology Engineering every 7 months. The most recent releases landed on September 27, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Atom Radiometer | Sensor Technology Engineering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (9 ratings)](https://appshunter.io/ios/app/atom-radiometer/id923687267/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 54.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Free | — |
| Size | 20 MB | 94 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maxim Koshelev](https://appshunter.io/developer/923687266) | [Sensor Technology Engineering](https://appshunter.io/developer/1668239053) |

## What reviewers say

### Atom Radiometer

[App page](https://appshunter.io/ios/app/atom-radiometer/id923687267)

Monitor radiation levels in your surroundings, including objects and food, using compatible radiometer devices. Ensure your environment and personal health metrics are within normal ranges by checking radiation background.

**Highlights:** Connects to Atom Simple, Atom Tag, Atom Swift, and Atom Fast radiometers, Monitors radiation background, Checks radiation of objects and food, Supports wired and wireless connections, Displays environmental and personal health metrics

**Features:** macOS Compatibility

**In-app purchases:** none


### Sensor Technology Engineering

[App page](https://appshunter.io/ios/app/sensor-technology-engineering/id1627959712)

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

**In-app purchases:** none


## Frequently asked questions

### Is Atom Radiometer free?

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

### Is Sensor Technology Engineering free?

Sensor Technology Engineering is free to download, with no in-app purchases.

### Do Atom Radiometer or Sensor Technology Engineering have ads?

Neither Atom Radiometer nor Sensor Technology Engineering shows ads.

### Which is updated more often, Atom Radiometer or Sensor Technology Engineering?

Atom Radiometer ships an update monthly, and Sensor Technology Engineering every 7 months. Most recently, Atom Radiometer was updated on September 27, 2026 and Sensor Technology Engineering on September 15, 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.*