# Rad Onc Calc vs Dosy Master

The clearest difference is rating: Dosy Master at 5.0 against Rad Onc Calc's 4.6. Dosy Master also leads on update cadence (every 10 days vs every 6 weeks). Rad Onc Calc's advantage is ratings volume (12 vs 1) and iOS requirement (14.0 vs 18.2). 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.

Dosy Master holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Rad Onc Calc has 12 ratings behind it against 1, so its average is the more settled of the two.

Rad Onc Calc ships an update every 6 weeks, Dosy Master every 10 days. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Rad Onc Calc | Dosy Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (12 ratings)](https://appshunter.io/ios/app/rad-onc-calc/id1494077153/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dosy-master/id6744180200/reviews)** |
| Number of ratings | **12** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Free | Free |
| Size | 57 MB | 11 MB |
| Requires iOS | **14.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Matthew Culbert](https://appshunter.io/developer/1435398886) | [Brennan Emerson Diedrich](https://appshunter.io/developer/1806406838) |

## What reviewers say

### Rad Onc Calc

[App page](https://appshunter.io/ios/app/rad-onc-calc/id1494077153)

A radiation oncology calculator and reference tool for medical professionals. It provides quick access to essential calculations and treatment constraints.

**Highlights:** Radiation oncology calculations, Treatment constraints reference, Quick access to essential data, Comprehensive tool for professionals

**Features:** macOS Compatibility

**In-app purchases:** none


### Dosy Master

[App page](https://appshunter.io/ios/app/dosy-master/id6744180200)

Access a comprehensive master textbook with interactive navigation and highlighted key terms and formulas. Review chapter summaries and test your knowledge with chapter-specific quizzes.

**Highlights:** Master textbook access, Interactive table of contents, Key terms and formulas highlighted, Chapter summaries, Chapter-specific quizzes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rad Onc Calc free?

Rad Onc Calc is free to download, with no in-app purchases.

### Is Dosy Master free?

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

### Which has better reviews, Rad Onc Calc or Dosy Master?

Dosy Master is rated higher. Rad Onc Calc averages 4.6 out of 5 from 12 ratings, while Dosy Master averages 5.0 from 1 ratings.

### Do Rad Onc Calc or Dosy Master have ads?

Neither Rad Onc Calc nor Dosy Master shows ads.

### Which is updated more often, Rad Onc Calc or Dosy Master?

Rad Onc Calc ships an update every 6 weeks, and Dosy Master every 10 days. Most recently, Rad Onc Calc was updated on October 21, 2026 and Dosy Master on October 8, 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.*