# Multiplier vs EQD Calculator

The clearest difference is monetization model: EQD Calculator at free against Multiplier's paid. EQD Calculator also leads on update cadence (every 3 weeks vs every 7 months) and iOS requirement (8.0 vs 13.0). Multiplier's advantage is rating (4.6 vs 4.4) and review sentiment (83% vs 75%). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Multiplier holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 24 and 7 respectively. Written reviews point the same way: 83% of Multiplier's written reviews are positive against 75% of EQD Calculator's.

Multiplier ships an update every 7 months, EQD Calculator every 3 weeks. The most recent releases landed on July 2, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Multiplier | EQD Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (24 ratings)](https://appshunter.io/ios/app/multiplier/id460335161/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/eqd-calculator/id898546583/reviews) |
| Number of ratings | **24** | 7 |
| Positive reviews | **83.3% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 62 MB | 15 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [LifeBridge Health](https://appshunter.io/developer/460335164) | [Hiroyuki KATOH](https://appshunter.io/developer/898546586) |

## What reviewers say

### Multiplier

[App page](https://appshunter.io/ios/app/multiplier/id460335161)

This app automates complex calculations for predicting mature height, bone length, and limb length discrepancies in children. It simplifies manual methods, reducing calculation time and errors for various orthopedic and growth-related assessments.

**Highlights:** Predict mature height, Calculate bone length, Assess limb length discrepancy, Analyze growth remaining, Plot height on CDC charts, Scanogram calculations, Foot length analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Multiplier free?

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

### Is EQD Calculator free?

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

### Which has better reviews, Multiplier or EQD Calculator?

Multiplier is rated higher. Multiplier averages 4.6 out of 5 from 24 ratings, while EQD Calculator averages 4.4 from 7 ratings.

### Do Multiplier or EQD Calculator have ads?

Neither Multiplier nor EQD Calculator shows ads.

### Which is updated more often, Multiplier or EQD Calculator?

Multiplier ships an update every 7 months, and EQD Calculator every 3 weeks. Most recently, Multiplier was updated on July 2, 2026 and EQD Calculator on June 10, 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.*