# Personal Dosimetry Assistant vs RAyTools

The clearest difference is iOS requirement: Personal Dosimetry Assistant at 11.0 against RAyTools's 15.1. On price, update cadence, 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.

Personal Dosimetry Assistant ships an update every 2 months, RAyTools every 4 months. The most recent releases landed on May 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Personal Dosimetry Assistant | RAyTools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 21 MB | 38 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stroetenga Technologies B.V.](https://appshunter.io/developer/1564096411) | [RACOM s.r.o.](https://appshunter.io/developer/1279358254) |

## What reviewers say

### Personal Dosimetry Assistant

[App page](https://appshunter.io/ios/app/personal-dosimetry-assistant/id1564096409)

**Features:** macOS Compatibility

**In-app purchases:** none


### RAyTools

[App page](https://appshunter.io/ios/app/raytools/id1667871328)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Personal Dosimetry Assistant free?

Personal Dosimetry Assistant is free to download, with no in-app purchases.

### Is RAyTools free?

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

### Do Personal Dosimetry Assistant or RAyTools have ads?

Neither Personal Dosimetry Assistant nor RAyTools shows ads.

### Which is updated more often, Personal Dosimetry Assistant or RAyTools?

Personal Dosimetry Assistant ships an update every 2 months, and RAyTools every 4 months. Most recently, Personal Dosimetry Assistant was updated on May 16, 2026 and RAyTools on September 18, 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.*