# Palfish Kids vs Optics Simulator

The clearest difference is price: Palfish Kids at Free against Optics Simulator's $1.99. Palfish Kids also leads on iOS requirement (13.0 vs 26.4). On ads, in-app purchases and device support there is nothing between them.

Palfish Kids 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 | Palfish Kids | Optics Simulator |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.6 (13 ratings)](https://appshunter.io/ios/app/palfish-kids/id6736818693/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Free | — |
| Size | 241 MB | 1 MB |
| Requires iOS | **13.0** | 26.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wuhan Qinxuan Technology Co., LTD](https://appshunter.io/developer/1656027724) | [My Call Bag LLC](https://appshunter.io/developer/1243282862) |

## What reviewers say

### Palfish Kids

[App page](https://appshunter.io/ios/app/palfish-kids/id6736818693)

This app offers an all-English learning environment with frequent interaction to help users communicate effectively. It features systematic education services, adaptive learning, and fun, engaging classes led by certified international teachers.

**Highlights:** All-English learning environment, High-frequency interaction, Systematic and efficient learning, Adaptive and social practice, Pearson original textbooks, Experienced, certified teachers, Immersive language environment

**Features:** macOS Compatibility

**In-app purchases:** none


### Optics Simulator

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Palfish Kids free?

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

### Is Optics Simulator free?

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

### Do Palfish Kids or Optics Simulator have ads?

Neither Palfish Kids nor Optics Simulator 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.*