---
title: "Jeong-hoon Kang — Publisher Overview"
type: publisher
publisher: "Jeong-hoon Kang"
publisher_slug: "jeong-hoon-kang"
canonical_url: "https://marlvel.ai/publishers/jeong-hoon-kang"
last_updated: 2026-05-07T08:28:47.924Z
source: Marlvel.ai
license: CC-BY-NC-4.0
citation: "Marlvel.ai — Jeong-hoon Kang Publisher Overview"
---
## ⚠ Content Warning

This publisher's portfolio includes apps classified as sensitive (adult). Information is aggregated from public sources for informational purposes only. This publisher has apps with mature themes. Viewer discretion is advised.

---

# Jeong-hoon Kang — Publisher Overview

> Providing language learners and power users with customizable vocabulary tools and cross-platform search utilities. Helping users organize and retrieve information efficiently.

- **Publisher:** Jeong-hoon Kang
- **Website:** [https://apps.apple.com](https://apps.apple.com)
- **Overview generated:** 2026-05-07
- **License:** CC-BY-NC 4.0

## Executive summary

The publisher operates as a niche developer focused on utility-driven language learning and productivity tools. Their strategy relies on high-utility, data-centric features—such as direct spreadsheet imports and cross-platform search integration—to differentiate from generic, content-heavy language apps. The primary tension lies in the long-term maintenance of a fragmented portfolio, as the majority of their titles have transitioned into a maintenance phase with minimal recent updates.

## Publisher DNA

- **Primary focus:** Language learning and productivity utilities
- **Scale:** studio
- **Target audience:** Language students and power users who prioritize data customization and efficient information retrieval over gamified experiences.

## Portfolio momentum

- **Velocity:** maintenance
- **Active apps:** 1
- **Abandoned apps:** 16
- **Last major release:** 25 days ago

With only one release in the last six months and 16 out of 17 apps classified as abandoned, the publisher is currently in a maintenance phase.

## Aggregated portfolio metrics

- **Total reviews (all apps):** 2,260
- **Weighted rating:** 3.56 / 5
- **Apps in portfolio:** 17

## Category breakdown

| Category | Apps | Share |
| :--- | :--- | :--- |
| Education | 11 | 64.7% |
| Reference | 4 | 23.5% |
| Utilities | 2 | 11.8% |

## Top apps

- **Korean Vocab Pro** — Flagship app with 2,175 reviews.
- **English Vocab & Dictionaries +** — High-rated educational tool with 26 reviews.
- **Touch Search +** — Utility tool for cross-platform search with 16 reviews.
- **Simply Paste Flashcards M** — Reference tool featuring direct data import with 11 reviews.
- **사자 성어 (Flashcards M)** — Specialized Chinese idiom tool with 5 reviews.

## Signature patterns

- Strong emphasis on user-defined data management and custom flashcard creation.
- Integration with external dictionaries and web search engines.
- Mixed monetization strategy utilizing both paid upfront models and free, ad-supported versions.
- Focus on niche educational content, particularly vocabulary and language reference.

## Bottom line

The publisher maintains a functional, utility-first portfolio that serves specific language-learning needs but lacks the development velocity required for significant market growth. Their value proposition is built on technical flexibility rather than content volume.

---
© 2026 Marlvel.ai | [Publisher apps index](https://marlvel.ai/api/llm/publishers/jeong-hoon-kang) | [Methodology](https://marlvel.ai/api/llm/methodology)
Data licensed under CC-BY-NC 4.0.

---
© 2026 Marlvel.ai | [Full publisher profile](https://marlvel.ai/publishers/jeong-hoon-kang) | [Publisher apps index](https://marlvel.ai/api/llm/publishers/jeong-hoon-kang) | [Methodology](https://marlvel.ai/api/llm/methodology)
Data licensed under CC-BY-NC 4.0.