# Book vs Emotional Brain Study

The clearest difference is in-app purchases: Emotional Brain Study at none against Book's 7. Emotional Brain Study also leads on ads (none vs shown) and iOS requirement (9.0 vs 16.0). Book's advantage is update cadence (every 2 months vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Book sells 7 one-off in-app purchases. Emotional Brain Study asks for nothing beyond the download.

Book ships an update every 2 months, Emotional Brain Study every 5 months. The most recent releases landed on November 2, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Book | Emotional Brain Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (272 ratings)](https://appshunter.io/ios/app/book-man/id1329581056/reviews)** | — |
| Number of ratings | **272** | — |
| Positive reviews | 68.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 55 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Farlex, Inc.](https://appshunter.io/developer/379450386) | [H2 Cognitive Designs LTD](https://appshunter.io/developer/1658315146) |

## What reviewers say

### Book

[App page](https://appshunter.io/ios/app/book-man/id1329581056)

Navigate challenging mazes, collect letters, and spell words to win. Outsmart enemies with spells and uncover hidden bonuses. Compete in daily challenges to maintain streaks and earn high scores in this classic arcade-style word game.

**Highlights:** Navigate mazes, Collect letters, Spell words to win, Avoid enemies (Blots), Cast Slow-Down spells, Find hidden letters and bonuses, Daily Challenges

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 15 coins | $0.99 | one-time |
| 40 coins | $1.99 | one-time |
| 65 coins | $2.99 | one-time |
| 100 coins | $3.99 | one-time |
| 200 coins | $6.99 | one-time |
| 300 coins | $9.99 | one-time |
| 1000 coins | $29.99 | one-time |

**What reviewers like**

- 👍 Fun and engaging gameplay
- 🧠 Stimulates the brain and vocabulary
- 🎮 Addictive and enjoyable
- 👨‍👩‍👧‍👦 Suitable for all ages
- 📚 Educational and informative

**What reviewers complain about**

- 🐛 Control issues with 'Book-Man'
- 🧱 Character gets stuck
- ❓ Lack of clear instructions
- 📈 Difficulty in progression (keys)
- 💸 In-app purchases can be frustrating

**Reported bugs**

- Book-Man doesn't follow directional movements
- Book-Man goes through walls
- Game crashes to home page
- Book-Man freezes during play
- Cannot unlock next level with a key

**Requested features**

- More levels or zones
- More languages
- Different game styles
- More 'Book-Man' heroes
- Ability to earn keys without purchase


### Emotional Brain Study

[App page](https://appshunter.io/ios/app/emotional-brain-study/id1445539640)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Book free?

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

### Is Emotional Brain Study free?

Emotional Brain Study is free to download, with no in-app purchases.

### Do Book or Emotional Brain Study have ads?

Book shows ads; Emotional Brain Study does not.

### Which is updated more often, Book or Emotional Brain Study?

Book ships an update every 2 months, and Emotional Brain Study every 5 months. Most recently, Book was updated on November 2, 2026 and Emotional Brain Study on October 26, 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.*