# Radioactive Decay Simulator vs MyDosimetrySchool App

The clearest difference is rating: MyDosimetrySchool App at 5.0 against Radioactive Decay Simulator's 4.0. MyDosimetrySchool App also leads on update cadence (weekly vs every 17 months) and ratings volume (4 vs 1). Radioactive Decay Simulator's advantage is in-app purchases (none vs 3) and iOS requirement (9.3 vs 12.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. MyDosimetrySchool App sells 3 in-app purchases, starting at $19.99 per month. Radioactive Decay Simulator asks for nothing beyond the download.

MyDosimetrySchool App holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Radioactive Decay Simulator ships an update every 17 months, MyDosimetrySchool App weekly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Radioactive Decay Simulator | MyDosimetrySchool App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/radioactive-decay-simulator/id959357000/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/mydosimetryschool-app/id1473246084/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 67 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Alistair Shaw](https://appshunter.io/developer/959356999) | [MyDosimetrySchool, LLC](https://appshunter.io/developer/1473246083) |

## What reviewers say

### Radioactive Decay Simulator

[App page](https://appshunter.io/ios/app/radioactive-decay-simulator/id959357000)

This educational tool simulates radioactive decay for a group of atoms. Users can choose preset atoms or input custom half-lives to observe decay in real-time graphs. The simulator allows for adjustments in atom count and speed for efficient analysis.

**Highlights:** Emulates radioactive decay, Select preset or custom atoms, Adjust atom count, Real-time decay graphs, Adjustable simulation speed

**Features:** macOS Compatibility

**In-app purchases:** none


### MyDosimetrySchool App

[App page](https://appshunter.io/ios/app/mydosimetryschool-app/id1473246084)

Access over 500 educational videos and lectures on radiation therapy treatment planning. Learn from experts, explore various techniques, and prepare for certification exams. Ideal for students and professionals in radiation oncology.

**Highlights:** 500+ treatment planning videos, Expert-led lectures, Site-specific planning techniques, Courses on multiple TPS, Progress tracking for groups, CE credit earning, Certification exam preparation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MDS Silver Member Subscription | $19.99 | per month |
| MDS Gold Member Subscription | $49.99 | per month |
| MDS PlatinumMemberSubscription | $249.99 | per year |


## Frequently asked questions

### Is Radioactive Decay Simulator free?

Radioactive Decay Simulator is free to download, with no in-app purchases.

### Is MyDosimetrySchool App free?

MyDosimetrySchool App is free to download, with in-app purchases available.

### Which has better reviews, Radioactive Decay Simulator or MyDosimetrySchool App?

MyDosimetrySchool App is rated higher. Radioactive Decay Simulator averages 4.0 out of 5 from 1 ratings, while MyDosimetrySchool App averages 5.0 from 4 ratings.

### Do Radioactive Decay Simulator or MyDosimetrySchool App have ads?

Neither Radioactive Decay Simulator nor MyDosimetrySchool App shows ads.

### Which is updated more often, Radioactive Decay Simulator or MyDosimetrySchool App?

Radioactive Decay Simulator ships an update every 17 months, and MyDosimetrySchool App weekly. Most recently, Radioactive Decay Simulator was updated on November 1, 2026 and MyDosimetrySchool App on November 3, 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.*