# iBunkoS vs Tokko no Shima

The clearest difference is price: Tokko no Shima at Free against iBunkoS's $2.99. Tokko no Shima also leads on review sentiment (74% vs 51%). iBunkoS's advantage is in-app purchases (none vs 10) and chart position (#174 vs unranked). On ads, device support and iOS requirement there is nothing between them.

Tokko no Shima is free to download; iBunkoS costs $2.99 up front. Tokko no Shima sells 10 one-off in-app purchases. iBunkoS asks for nothing beyond the download.

iBunkoS ships an update every 2 months, Tokko no Shima every 5 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | iBunkoS | Tokko no Shima |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/ibunkos/id418102178/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 51.2% of reviews | **73.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#174** | — |
| Size | 35 MB | 5 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [DWANGO Co., Ltd.](https://appshunter.io/developer/297539595) | [Susumu Hoshikawa](https://appshunter.io/developer/413265272) |

## What reviewers say

### iBunkoS

[App page](https://appshunter.io/ios/app/ibunkos/id418102178)

**Currently charting:** #174 Top Paid · Book (US App Store)

This app offers a realistic paper book reading experience on your iPhone, supporting various file formats like TXT, PDF, and comics. It includes features like a digital bookshelf, bookmarking with notes, and dictionary lookups.

**Highlights:** Realistic paper book interface, Supports TXT, PDF, CBZ, CBR files, 230+ built-in books and Aozora Bunko access, Customizable bookshelf and bookmarks, File transfer via USB, cloud, and servers, Dictionary lookup integration, Passcode lock for privacy

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


### Tokko no Shima

[App page](https://appshunter.io/ios/app/tokko-no-shima/id602560302)

Experience a gripping historical comic about human torpedo crews in the Pacific War. The first volume is free, with subsequent volumes available for purchase. Discover the acclaimed work by Syuho Sato, known for "Give My Regards to Black Jack."

**Highlights:** Historical Pacific War comic, Human torpedo crew depiction, First volume free, Subsequent volumes for purchase, Work by Syuho Sato, Available on iPhone and iPad

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 特攻の島 第２巻 | $1.99 | one-time |
| 特攻の島 第３巻 | $1.99 | one-time |
| 特攻の島 第４巻 | $1.99 | one-time |
| 特攻の島 第５巻 | $1.99 | one-time |
| 特攻の島 第６巻 | $1.99 | one-time |
| 特攻の島 第７巻 | $1.99 | one-time |
| 特攻の島 第８巻 | $1.99 | one-time |
| マンガ on ウェブ 20号 | $2.99 | one-time |
| マンガ on ウェブ 21号 | $2.99 | one-time |
| マンガ on ウェブ 22号 | $2.99 | one-time |


## Frequently asked questions

### Is iBunkoS free?

iBunkoS costs $2.99, with no in-app purchases.

### Is Tokko no Shima free?

Tokko no Shima is free to download, with in-app purchases available.

### Do iBunkoS or Tokko no Shima have ads?

Neither iBunkoS nor Tokko no Shima shows ads.

### Which is updated more often, iBunkoS or Tokko no Shima?

iBunkoS ships an update every 2 months, and Tokko no Shima every 5 months. Most recently, iBunkoS was updated on November 1, 2026 and Tokko no Shima on November 1, 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.*