# BED Calculator vs PocketRT

The clearest difference is update cadence: PocketRT at every 9 days against BED Calculator's every 41 months. BED Calculator's advantage is device support (3 vs 1) and iOS requirement (16.6 vs 18.0). On price, 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 ships an update every 41 months, PocketRT every 9 days. The most recent releases landed on September 27, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | BED Calculator | PocketRT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bed-calculator-radiotherapy/id397088240/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 4 MB | 1 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [MARGINAL GAINS INC.](https://appshunter.io/developer/1790407458) | [Yoshiki Hiraki](https://appshunter.io/developer/6796613657) |

## 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


### PocketRT

[App page](https://appshunter.io/ios/app/pocketrt/id6796613655)

**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 PocketRT free?

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

### Do BED Calculator or PocketRT have ads?

Neither BED Calculator nor PocketRT shows ads.

### Which is updated more often, BED Calculator or PocketRT?

BED Calculator ships an update every 41 months, and PocketRT every 9 days. Most recently, BED Calculator was updated on September 27, 2026 and PocketRT on October 29, 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.*