# Refractive vs CloudLabs Optical Phenomena

Refractive and CloudLabs Optical Phenomena are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Refractive | CloudLabs Optical Phenomena |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/refractive/id339056990/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Monetization | Free | — |
| Size | 20 MB | 68 MB |
| Requires iOS | 10 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Jiovany Orozco](https://appshunter.io/developer/1114670847) |

## 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


### CloudLabs Optical Phenomena

[App page](https://appshunter.io/ios/app/cloudlabs-optical-phenomena/id1636389963)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Refractive free?

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

### Is CloudLabs Optical Phenomena free?

CloudLabs Optical Phenomena is free to download, with no in-app purchases.

### Do Refractive or CloudLabs Optical Phenomena have ads?

Neither Refractive nor CloudLabs Optical Phenomena shows ads.

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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.*