# BOOK WALKER vs RAINY COCOA

The clearest difference is review sentiment: RAINY COCOA at 82% against BOOK WALKER's 32%. RAINY COCOA also leads on rating (5.0 vs 4.0) and iOS requirement (15.6 vs 17.0). BOOK WALKER's advantage is price (Free vs $1.99) and ratings volume (410 vs 2). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

BOOK WALKER is free to download; RAINY COCOA costs $1.99 up front. BOOK WALKER sells 11 one-off in-app purchases and RAINY COCOA sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

RAINY COCOA holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: BOOK WALKER has 410 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 32% of BOOK WALKER's written reviews are positive against 82% of RAINY COCOA's.

BOOK WALKER ships an update every 5 weeks, RAINY COCOA monthly. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | BOOK WALKER | RAINY COCOA |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.0 (410 ratings)](https://appshunter.io/ios/app/book-walker/id580775134/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rainy-cocoa/id651284829/reviews)** |
| Number of ratings | **410** | 2 |
| Positive reviews | 32.4% of reviews | **81.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 122 MB | 179 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BOOKWALKER](https://appshunter.io/developer/567412204) | [IAM, K.K.](https://appshunter.io/developer/609407356) |

## What reviewers say

### BOOK WALKER

[App page](https://appshunter.io/ios/app/book-walker/id580775134)

Access a vast library of English light novels and manga, including popular titles and exclusive content. Enjoy features like V-Scroll comics, simultaneous Japanese publication releases, and audiobooks. Personalize your digital bookshelf and take advantage of regular promotions and coin-back rewards.

**Highlights:** V-Scroll Comics (Webtoons), Manga simultaneous publication, Audiobook selection, Exclusive short stories, Bonus content and giveaways, Coin-back and discount promotions, Personalizable digital library

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 価格帯1の電子書籍 | $0.99 | one-time |
| 価格帯2の電子書籍 | $1.99 | one-time |
| 価格帯3の電子書籍 | $2.99 | one-time |
| 価格帯A3の電子書籍 | $2.99 | one-time |
| 価格帯4の電子書籍 | $3.99 | one-time |
| 価格帯A4の電子書籍 | $3.99 | one-time |
| 価格帯5の電子書籍 | $4.99 | one-time |
| 価格帯A5の電子書籍 | $4.99 | one-time |
| 価格帯6の電子書籍 | $5.99 | one-time |
| 価格帯7の電子書籍 | $6.99 | one-time |
| 価格帯9の電子書籍 | $9.99 | one-time |

**What reviewers like**

- 🚀 Great app for Japanese language speakers outside Japan
- 👍 Easy to use and diverse range of material
- 💡 Coin system allows for affordable purchases
- 👍 Manga and light novels are high quality

**What reviewers complain about**

- 🐛 Crashes frequently, especially on iPad
- 🐛 Downloading issues, slow speeds, and instability
- 🔒 Can't transfer purchased content to other platforms
- 🔒 Removed ability to access Japanese store in-app
- 👎 Expensive with coupon codes rarely working

**Reported bugs**

- Constant login issues and authentication failures
- App freezes and crashes when opening books/manga
- Incompatible with older iOS devices after updates
- Downloading often fails or gets stuck indefinitely

**Requested features**

- Add ability to sync bookshelves across devices
- Improve page turning and reading experience
- Integrate purchasing directly within the app
- Expand dictionary and translation features
- Restore access to Japanese store within the app


### RAINY COCOA

[App page](https://appshunter.io/ios/app/rainy-cocoa/id651284829)

Experience the world's first e-manga, featuring a heartwarming story set in a coffee shop. Switch between Japanese and English text and audio, and enjoy voice acting from popular talents.

**Highlights:** World's first e-manga, Japanese and English text/audio switching, Professional voice actors, Coffee shop story setting, Interactive page turning

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RAINY COCOA(Japanese/French)01 | $0.99 | one-time |
| Rainy Cocoa02(Japanese) | $1.99 | one-time |
| RAINY COCOA(Japanese/Spanish)01 | $1.99 | one-time |
| Rainy Cocoa 03 (Japanese) | $1.99 | one-time |
| Rainy Cocoa 04 (Japanese) | $1.99 | one-time |
| Rainy Cocoa05(Japanese) | $1.99 | one-time |
| Rainy Cocoa06(JP) | $1.99 | one-time |


## Frequently asked questions

### Is BOOK WALKER free?

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

### Is RAINY COCOA free?

RAINY COCOA costs $1.99, and also offers in-app purchases.

### Which has better reviews, BOOK WALKER or RAINY COCOA?

RAINY COCOA is rated higher. BOOK WALKER averages 4.0 out of 5 from 410 ratings, while RAINY COCOA averages 5.0 from 2 ratings.

### Do BOOK WALKER or RAINY COCOA have ads?

Neither BOOK WALKER nor RAINY COCOA shows ads.

### Which is updated more often, BOOK WALKER or RAINY COCOA?

BOOK WALKER ships an update every 5 weeks, and RAINY COCOA monthly. Most recently, BOOK WALKER was updated on October 19, 2026 and RAINY COCOA on October 5, 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.*