# EQD Calculator vs ESTRO 2026

The clearest difference is review sentiment: EQD Calculator at 75% against ESTRO 2026's 0%. EQD Calculator also leads on iOS requirement (8.0 vs 15.5). ESTRO 2026's advantage is update cadence (weekly vs every 3 weeks). 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.

EQD Calculator ships an update every 3 weeks, ESTRO 2026 weekly. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | EQD Calculator | ESTRO 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/eqd-calculator/id898546583/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 15 MB | 100 MB |
| Requires iOS | **8.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Hiroyuki KATOH](https://appshunter.io/developer/898546586) | [CYIM](https://appshunter.io/developer/394180060) |

## What reviewers say

### EQD Calculator

[App page](https://appshunter.io/ios/app/eqd-calculator/id898546583)

This app assists radiation oncology professionals in calculating Biologically Effective Dose (BED) and Equivalent Dose (EQD) for radiotherapy. It offers quick and easy results, allowing for adjustments to treatment schedules and estimation of treatment effects.

**Highlights:** Calculate BED and EQD, Adjust radiotherapy schedules, Estimate treatment effects, View alpha/beta ratio and tolerance dose tables, Organize with URL scheme

**Features:** macOS Compatibility

**In-app purchases:** none


### ESTRO 2026

[App page](https://appshunter.io/ios/app/estro-2026/id1614477899)

Access the full program, engage during sessions, and view posters for a leading radiation oncology congress. This app facilitates learning, collaboration, and connection within the medical community.

**Highlights:** Access congress program, Interact during sessions, Watch session replays, View posters, Connect with community

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

**In-app purchases:** none


## Frequently asked questions

### Is EQD Calculator free?

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

### Is ESTRO 2026 free?

ESTRO 2026 is free to download, with no in-app purchases.

### Do EQD Calculator or ESTRO 2026 have ads?

Neither EQD Calculator nor ESTRO 2026 shows ads.

### Which is updated more often, EQD Calculator or ESTRO 2026?

EQD Calculator ships an update every 3 weeks, and ESTRO 2026 weekly. Most recently, EQD Calculator was updated on October 24, 2026 and ESTRO 2026 on October 20, 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.*