# Optics Simulator vs Sapling Isle

The clearest difference is price: Sapling Isle at Free against Optics Simulator's $1.99. Sapling Isle also leads on iOS requirement (18.0 vs 26.4). On ads, in-app purchases and device support there is nothing between them.

Sapling Isle is free to download; Optics Simulator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Optics Simulator | Sapling Isle |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 1 MB | 40 MB |
| Requires iOS | 26.4 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [My Call Bag LLC](https://appshunter.io/developer/1243282862) | [大鹏 张](https://appshunter.io/developer/937718061) |

## What reviewers say

### Optics Simulator

[App page](https://appshunter.io/ios/app/optics-simulator-ray-diagram/id6773525708)

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

**In-app purchases:** none


### Sapling Isle

[App page](https://appshunter.io/ios/app/sapling-isle-physics-lab/id6792211746)

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

**In-app purchases:** none


## Frequently asked questions

### Is Optics Simulator free?

Optics Simulator costs $1.99, with no in-app purchases.

### Is Sapling Isle free?

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

### Do Optics Simulator or Sapling Isle have ads?

Neither Optics Simulator nor Sapling Isle 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.*