# 有斐閣判例六法Professional vs くじら六法

The clearest difference is review sentiment: くじら六法 at 83% against 有斐閣判例六法Professional's 22%. くじら六法 also leads on in-app purchases (none vs 12). 有斐閣判例六法Professional's advantage is ads (none vs shown) and iOS requirement (14.0 vs 18.1). On price, update cadence and device support there is nothing between them.

Both are free to download. 有斐閣判例六法Professional sells 12 one-off in-app purchases. くじら六法 asks for nothing beyond the download.

有斐閣判例六法Professional ships an update every 2 months, くじら六法 every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 有斐閣判例六法Professional | くじら六法 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 22.2% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 9 MB |
| Requires iOS | **14.0** | 18.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuhikaku Publishing Co., Ltd.](https://appshunter.io/developer/443879849) | [Takashi Shinyashiki](https://appshunter.io/developer/1235395472) |

## What reviewers say

### 有斐閣判例六法Professional

[App page](https://appshunter.io/ios/app/professional/id929378393)

Access a comprehensive collection of laws and case precedents for practical use and study. Navigate statutes, view case summaries, and utilize extensive search functions. Customize text size and enjoy a portable, digital legal reference.

**Highlights:** Systematic statute search, Case precedent summaries, Full-text search for statutes and cases, Customizable text size and line spacing, Bookmark and note-taking functionality, Cross-referencing of statutes and cases, Searchable indexes (subject, case date, case name)

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 令和07年版（書籍購入者優待価格版） | $5.99 | one-time |
| 平成29年版（書籍購入者優待価格版） | $5.99 | one-time |
| 平成31年版（書籍購入者優待価格版） | $5.99 | one-time |
| 令和02年版（書籍購入者優待価格版） | $5.99 | one-time |
| 令和03年版（書籍購入者優待価格版） | $5.99 | one-time |
| 令和04年版（書籍購入者優待価格版） | $5.99 | one-time |
| 令和06年版（書籍購入者優待価格版） | $5.99 | one-time |
| 平成30年版（通常価格版） | $29.99 | one-time |
| 平成31年版（通常価格版） | $29.99 | one-time |
| 令和02年版 | $29.99 | one-time |
| 令和04年版（通常価格版） | $29.99 | one-time |
| 平成29年版（通常価格版） | $34.99 | one-time |


### くじら六法

[App page](https://appshunter.io/ios/app/id1346464592)

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

**In-app purchases:** none


## Frequently asked questions

### Is 有斐閣判例六法Professional free?

有斐閣判例六法Professional is free to download, with in-app purchases available.

### Is くじら六法 free?

くじら六法 is free to download, with no in-app purchases.

### Do 有斐閣判例六法Professional or くじら六法 have ads?

くじら六法 shows ads; 有斐閣判例六法Professional does not.

### Which is updated more often, 有斐閣判例六法Professional or くじら六法?

有斐閣判例六法Professional ships an update every 2 months, and くじら六法 every 3 months. Most recently, 有斐閣判例六法Professional was updated on October 26, 2026 and くじら六法 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.*