# BED LQ Calc — BED LQ Model Calculator

> Radiation therapy calculator for LQ model, BED, and EQD2 dose calculations. (iPhone/iPad app by Gorkem Gungor.)

- Source: https://appshunter.io/ios/app/bed-lq-calc/id6749206758 (this page in markdown: same URL + `.md`)
- Developer: [Gorkem Gungor](https://appshunter.io/developer/1829280583)
- Category: Medical, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 1 MB
- Languages: American English
- Released: 2025-07-28
- Data updated: 2026-06-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/bed-lq-calc/id6749206758/reviews.md

## What is BED LQ Calc?

BED & LQ Model Calculator for Radiotherapy Dose and Fraction Calculation
A comprehensive and user-friendly calculator designed for radiation therapy professionals to perform essential radiobiological calculations using the Linear-Quadratic (LQ) model.

Key Features:

LQ Model Calculations:

Calculate biological equivalent doses for different fractionation schemes
Support for multiple treatment courses (C1, C2, C3)
Flexible α/β ratio settings (3 Gy and 10 Gy presets)
Dose per fraction and total dose calculations

BED & EQD2 Calculations:

Biologically Effective Dose (BED) calculations
Equivalent Dose in 2 Gy fractions (EQD2) conversions
Support for both early-responding (α/β = 10 Gy) and late-responding tissues (α/β = 3 Gy)
Automatic summation across multiple treatment courses

Professional Tools:

Clean, intuitive interface optimized for clinical use
Individual course clearing options
Quick "Clear All" functionality
Precise numerical inputs with validation
Instant calculations with professional accuracy

Perfect for:

Radiation oncologists
Medical physicists
Radiation therapy students
Healthcare professionals in radiotherapy

This calculator streamlines complex radiobiological calculations, helping healthcare professionals make informed decisions about radiation treatment planning and dose optimization. Whether you're comparing different fractionation schedules or calculating cumulative biological effects, this tool provides reliable, fast calculations essential for modern radiation therapy practice.

Developed by Görkem Güngör - Istanbul

Note: This tool is intended for educational and professional reference purposes. Always verify calculations and consult with qualified medical professionals for treatment decisions.

## Key features

- LQ Model Calculations
- BED & EQD2 Calculations
- Multiple Treatment Courses
- Flexible α/β Ratio Settings
- Intuitive Clinical Interface
- Precise Numerical Inputs

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/bed-lq-calc/id6749206758/reviews.md

### 5/5 — Superb!!!

*2026-01-10*

This is the best app I’ve used since the EQD2 app which is no longer supported with newer iOS.  Thanks.

## Frequently asked questions about BED LQ Calc

### What is BED LQ Calc used for?

BED LQ Calc is a tool for radiation therapy professionals to perform radiobiological calculations using the Linear-Quadratic (LQ) model. It helps in calculating biologically effective doses and equivalent doses for different fractionation schemes.

### What types of calculations does BED LQ Calc support?

BED LQ Calc supports LQ model calculations, Biologically Effective Dose (BED) calculations, and Equivalent Dose in 2 Gy fractions (EQD2) conversions. It can handle multiple treatment courses and flexible alpha/beta ratio settings.

### Is BED LQ Calc suitable for both early and late-responding tissues?

Yes, BED LQ Calc supports calculations for both early-responding tissues with an α/β ratio of 10 Gy and late-responding tissues with an α/β ratio of 3 Gy.

### Does BED LQ Calc have ads?

No, BED LQ Calc does not contain advertisements. It is a free application designed for professional reference.

### On which devices can I use BED LQ Calc?

BED LQ Calc is available for iPhone and iPad, offering a clean and intuitive interface optimized for clinical use on these platforms.

### How often is BED LQ Calc updated?

The latest version of BED LQ Calc is 1.4, and it was last updated on August 5, 2025. Updates typically focus on improving functionality and accuracy for radiotherapy professionals.

### What is the age rating for BED LQ Calc?

BED LQ Calc has an age rating of 4+, making it accessible to a wide range of users, though its primary audience is healthcare professionals.

### Is BED LQ Calc intended for actual patient treatment decisions?

BED LQ Calc is intended for educational and professional reference purposes. Users should always verify calculations and consult with qualified medical professionals for treatment decisions.

## Version history (last 5 releases)

### 1.4 — 2025-08-05

The new user interface has been released. Region and language-dependent decimal separator bug fixed.

### 1.3 — 2025-08-04

EQD2lowercase textfield is updated after alpha/beta is selected. UI bugs fixed

### 1.2 — 2025-08-02

Dark mode bug fixed.

### 1.1 — 2025-08-01

Dark mode picker problem solved. Total Dose fields made editable. Keyboard types added for digit input only. The selected value in the Picker is highlighted in black.

### 1.0 — 2025-07-29

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 2026-06-09.*