# Refractive vs Electromagnetic Forces

The clearest difference is review sentiment: Refractive at 100% against Electromagnetic Forces's 0%. Refractive also leads on price (Free vs $0.99) and rating (5.0 vs 1.0). On ads, in-app purchases and device support there is nothing between them.

Refractive is free to download; Electromagnetic Forces costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Refractive holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 100% of Refractive's written reviews are positive against 0% of Electromagnetic Forces's.

Refractive ships an update every 10 months, Electromagnetic Forces every 32 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Refractive | Electromagnetic Forces |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/refractive/id339056990/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/electromagnetic-forces-emf/id1159691990/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 32 months |
| Monetization | **Free** | Paid |
| Size | 20 MB | 25 MB |
| Requires iOS | **10** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) |

## What reviewers say

### Refractive

[App page](https://appshunter.io/ios/app/refractive/id339056990)

This application calculates the refractive index of transparent materials based on wavelength. It assists optical design engineers and students by computing transmission properties, angles, and critical values. Users can also define custom materials for their calculations.

**Highlights:** Refractive index calculation by wavelength, Light transmission angle calculation, Reflection and transmission coefficients, Critical angle and Brewster's angle calculation, Recall of refraction formulas, Custom material definition

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

**In-app purchases:** none


### Electromagnetic Forces

[App page](https://appshunter.io/ios/app/electromagnetic-forces-emf/id1159691990)

This educational app uses interactive 3D animations and experiments to explain electromagnetism and cathode rays for K12 students. It covers Fleming's left-hand rule, cathode ray structure, and the Cathode Ray Oscilloscope, with practice exercises and quizzes to reinforce learning.

**Highlights:** Interactive 3D animations, Explains Fleming's left-hand rule, Demonstrates cathode ray structure, Illustrates Cathode Ray Oscilloscope, Practice exercises, Interactive quizzes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Refractive free?

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

### Is Electromagnetic Forces free?

Electromagnetic Forces costs $0.99, with no in-app purchases.

### Which has better reviews, Refractive or Electromagnetic Forces?

Refractive is rated higher. Refractive averages 5.0 out of 5 from 3 ratings, while Electromagnetic Forces averages 1.0 from 1 ratings.

### Do Refractive or Electromagnetic Forces have ads?

Neither Refractive nor Electromagnetic Forces shows ads.

### Which is updated more often, Refractive or Electromagnetic Forces?

Refractive ships an update every 10 months, and Electromagnetic Forces every 32 months. Most recently, Refractive was updated on October 24, 2026 and Electromagnetic Forces on October 24, 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.*