# RadBioCalc - EQD2 calculator — Calculator for EQD2, BED, nFED

> Calculator for EQD2, BED, nFED (iPhone/iPad app by Joe Chang.)

- Source: https://appshunter.io/ios/app/radbiocalc-eqd2-calculator/id6806730008 (this page in markdown: same URL + `.md`)
- Developer: [Joe Chang](https://appshunter.io/developer/6806730010)
- Category: Education, Medical
- Price: Free
- Age rating: 17+
- Requires: iOS 15.1 · 41 MB
- Languages: American English
- Released: 2026-09-10
- Data updated: 2026-10-17

## What is RadBioCalc?

This is a calculator app for radiobiology students to learn the effects of changing doses and fractionation schedules in radiotherapy.
- Set out as a spreadsheet to allow the rapid comparison of up to 6 different radiotherapy schedules
- Required input: total dose for the course of radiotherapy in gray (Gy), the number of fractions, and the fractionation sensitivity (α/β)
- Output: biologically effective dose (BED), equivalent dose in 2 Gy fractions (EQD2), and “n” fraction equivalent dose (nFED)

## Is RadBioCalc safe?

Not enough ratings yet to assess RadBioCalc.

## Is RadBioCalc legit?

RadBioCalc - EQD2 calculator has limited verification signals. The AppsHunter Legitimacy Score for RadBioCalc is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.1.1 — 2026-09-24

Minor updates

### 1.1 — 2026-09-23

Added a button to freeze columns. Tidied up the spreadsheet to make more columns visible without scrolling.

### 1.0 — 2026-09-10

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-17.*