# Kojien JK DIC vs Language Pro

The clearest difference is price: Language Pro at Free against Kojien JK DIC's $39.99. Language Pro also leads on update cadence (weekly vs every 29 months). Kojien JK DIC's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Language Pro is free to download; Kojien JK DIC costs $39.99 up front. Language Pro sells 4 in-app purchases, starting at $2.99 per 7 days. Kojien JK DIC asks for nothing beyond the download.

Kojien JK DIC ships an update every 29 months, Language Pro weekly. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Kojien JK DIC | Language Pro |
| --- | --- | --- |
| Price | $39.99 | **Free** |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 29 months | **Weekly** |
| Monetization | Paid | — |
| Size | 181 MB | 50 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [DaolSoft, Co., Ltd.](https://appshunter.io/developer/295463355) | [HEYLINGO OU](https://appshunter.io/developer/1553223729) |

## What reviewers say

### Kojien JK DIC

[App page](https://appshunter.io/ios/app/kojien-jk-dic/id580727257)

This app provides a comprehensive Japanese-Korean dictionary based on the acclaimed Kojien Japanese dictionary. It features real-time search for headwords and idioms, customizable word lists, and learning tools like flashcards and quizzes. Perfect for serious language learners and professionals needing accurate Japanese-Korean translations.

**Highlights:** Based on Kojien Japanese dictionary 6th edition, Real-time headword and idiom search, Multiple word list functionality, Recent search history, Flashcard learning tool, Quiz mode for practice, Word and idiom list backup

**Features:** macOS Compatibility

**In-app purchases:** none


### Language Pro

[App page](https://appshunter.io/ios/app/language-pro/id6747474616)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $2.99 | per 7 days |
| Month | $4.99 | per month |
| Year | $29.99 | per year |
| Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Kojien JK DIC free?

Kojien JK DIC costs $39.99, with no in-app purchases.

### Is Language Pro free?

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

### Do Kojien JK DIC or Language Pro have ads?

Language Pro shows ads; Kojien JK DIC does not.

### Which is updated more often, Kojien JK DIC or Language Pro?

Kojien JK DIC ships an update every 29 months, and Language Pro weekly. Most recently, Kojien JK DIC was updated on October 24, 2026 and Language Pro on October 7, 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.*