# Katakamuna word Book vs ECCJアプリ

The clearest difference is price: ECCJアプリ at Free against Katakamuna word Book's $4.99. ECCJアプリ also leads on in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 2 months). On ads, device support and iOS requirement there is nothing between them.

ECCJアプリ is free to download; Katakamuna word Book costs $4.99 up front. Katakamuna word Book sells 1 one-off in-app purchase. ECCJアプリ asks for nothing beyond the download.

Katakamuna word Book ships an update every 2 months, ECCJアプリ every 2 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Katakamuna word Book | ECCJアプリ |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/katakamuna-word-book/id1490121732/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 21 MB | 30 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Smartmachine](https://appshunter.io/developer/1490121731) | [Edgar Cayce Center in Japan](https://appshunter.io/developer/1789301093) |

## What reviewers say

### Katakamuna word Book

[App page](https://appshunter.io/ios/app/katakamuna-word-book/id1490121732)

Explore the hidden meanings of words through a unique phonetic system. Look up words, record notes, and access daily insights via a widget. Export your saved lists for further analysis.

**Highlights:** Word lookup by katakana or Romanization, Discover Kotodama and Kazutama, Register words and record memos, Widget for daily Kotodama, Keyword search in Kotodama List, Import and export word lists (CSV, Excel)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Option Package | $2.99 | one-time |


### ECCJアプリ

[App page](https://appshunter.io/ios/app/eccj/id6758862772)

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

**In-app purchases:** none


## Frequently asked questions

### Is Katakamuna word Book free?

Katakamuna word Book costs $4.99, and also offers in-app purchases.

### Is ECCJアプリ free?

ECCJアプリ is free to download, with no in-app purchases.

### Do Katakamuna word Book or ECCJアプリ have ads?

Neither Katakamuna word Book nor ECCJアプリ shows ads.

### Which is updated more often, Katakamuna word Book or ECCJアプリ?

Katakamuna word Book ships an update every 2 months, and ECCJアプリ every 2 weeks. Most recently, Katakamuna word Book was updated on October 26, 2026 and ECCJアプリ on October 24, 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.*