# iOAK vs Learning World Book 3

The clearest difference is review sentiment: iOAK at 75% against Learning World Book 3's 0%. iOAK also leads on update cadence (every 9 months vs every 52 months). Learning World Book 3's advantage is price ($2.99 vs $4.99) and iOS requirement (11.0 vs 15.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

iOAK costs $4.99 and Learning World Book 3 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iOAK ships an update every 9 months, Learning World Book 3 every 52 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | iOAK | Learning World Book 3 |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 52 months |
| Monetization | Paid | Paid |
| Size | 13 MB | 76 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [atacLab Co., Ltd.](https://appshunter.io/developer/1052477191) | [APRICOT PUBLISHING CO., LTD.](https://appshunter.io/developer/1387800869) |

## What reviewers say

### iOAK

[App page](https://appshunter.io/ios/app/ioak/id1114748413)

This app uses your device's camera to track your movements and translate them into switch controls. Create custom air switches or connect to external devices to interact with your environment and smart home gadgets.

**Highlights:** Camera-based motion tracking, Customizable air switches, External switch integration (Bluetooth), Smart home device control (HomeKit/Matter), Shortcut automation

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

**In-app purchases:** none


### Learning World Book 3

[App page](https://appshunter.io/ios/app/learning-world-book-3/id1437608271)

This app offers English language learning content for elementary school students, focusing on grammar, vocabulary, and creative expression. It includes dialogues, songs, and chants to enhance listening skills and encourage practice.

**Highlights:** Grammar and vocabulary lessons, Creative expression activities, Listening skill enhancement, Dialogues, songs, and chants, Practice with repeat-pause tracks, Rhythm-based practice for chants

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iOAK free?

iOAK costs $4.99, with no in-app purchases.

### Is Learning World Book 3 free?

Learning World Book 3 costs $2.99, with no in-app purchases.

### Do iOAK or Learning World Book 3 have ads?

Neither iOAK nor Learning World Book 3 shows ads.

### Which is updated more often, iOAK or Learning World Book 3?

iOAK ships an update every 9 months, and Learning World Book 3 every 52 months. Most recently, iOAK was updated on October 7, 2026 and Learning World Book 3 on October 8, 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.*