# BED Calculator vs RO Toolbox

The clearest difference is review sentiment: BED Calculator at 100% against RO Toolbox's 0%. BED Calculator also leads on rating (5.0 vs 4.5). RO Toolbox's advantage is update cadence (every 3 months vs every 41 months). On price, ratings volume, 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.

BED Calculator holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 100% of BED Calculator's written reviews are positive against 0% of RO Toolbox's.

BED Calculator ships an update every 41 months, RO Toolbox every 3 months. The most recent releases landed on September 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BED Calculator | RO Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bed-calculator-radiotherapy/id397088240/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/ro-toolbox/id968361326/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 4 MB | 82 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [MARGINAL GAINS INC.](https://appshunter.io/developer/1790407458) | [Radiation Oncology Institute](https://appshunter.io/developer/968361325) |

## What reviewers say

### BED Calculator

[App page](https://appshunter.io/ios/app/bed-calculator-radiotherapy/id397088240)

This tool helps radiation oncology professionals calculate Biological Effective Dose (BED) and Equivalent Dose in 2 Gy fractions (EQD2) using the Linear-Quadratic model. It offers a streamlined interface for rapid dose calculations, including cumulative dose summation and fractionation conversion, and is now available on Apple Watch.

**Highlights:** Biological Effective Dose (BED) calculation, Equivalent Dose in 2 Gy fractions (EQD2) calculation, Linear-Quadratic (LQ) model, Cumulative dose summation, Fractionation conversion, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### RO Toolbox

[App page](https://appshunter.io/ios/app/ro-toolbox/id968361326)

A point-of-care resource for healthcare professionals, offering frequently accessed references for radiation therapy delivery. It includes dose constraints, calculators, clinical practice guidelines, and staging information to support evidence-based practice.

**Highlights:** Dose constraints, Calculators, Clinical practice guidelines, Staging information, Oncology resources, Evidence-based practice support

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

**In-app purchases:** none


## Frequently asked questions

### Is BED Calculator free?

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

### Is RO Toolbox free?

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

### Which has better reviews, BED Calculator or RO Toolbox?

BED Calculator is rated higher. BED Calculator averages 5.0 out of 5 from 3 ratings, while RO Toolbox averages 4.5 from 4 ratings.

### Do BED Calculator or RO Toolbox have ads?

Neither BED Calculator nor RO Toolbox shows ads.

### Which is updated more often, BED Calculator or RO Toolbox?

BED Calculator ships an update every 41 months, and RO Toolbox every 3 months. Most recently, BED Calculator was updated on September 27, 2026 and RO Toolbox on October 24, 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.*