# Light Lab vs WorldFun

The clearest difference is price: Light Lab at Free against WorldFun's $0.99. Light Lab also leads on iOS requirement (16.6 vs 18.5). WorldFun's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Light Lab is free to download; WorldFun costs $0.99 up front. Light Lab sells 2 one-off in-app purchases. WorldFun asks for nothing beyond the download.

## The numbers

| Metric | Light Lab | WorldFun |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 8 MB | 1 MB |
| Requires iOS | **16.6** | 18.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [THSS](https://appshunter.io/developer/1722239755) | [Tomas Pace](https://appshunter.io/developer/1848578512) |

## What reviewers say

### Light Lab

[App page](https://appshunter.io/ios/app/light-lab-learn-optics/id6504238420)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase all lenses | $4.99 | one-time |
| Lens Ticket Issuance Function | $9.99 | one-time |


### WorldFun

[App page](https://appshunter.io/ios/app/worldfun/id6754512203)

**In-app purchases:** none


## Frequently asked questions

### Is Light Lab free?

Light Lab is free to download, with in-app purchases available.

### Is WorldFun free?

WorldFun costs $0.99, with no in-app purchases.

### Do Light Lab or WorldFun have ads?

Neither Light Lab nor WorldFun 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.*