# JumJeen จำจีนไม่จำเจ — เรียนจีนจากรากศัพท์

> เรียนจีนจากรากศัพท์ (iPhone/iPad app by Attaphon Predaboon.)

- Source: https://appshunter.io/ios/app/jumjeen/id6802834293 (this page in markdown: same URL + `.md`)
- Developer: [Attaphon Predaboon](https://appshunter.io/developer/6802834595)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 171 MB
- Languages: American English, Thai
- Released: 2026-09-06
- Data updated: 2026-09-22
- User reviews in markdown: https://appshunter.io/ios/app/jumjeen/id6802834293/reviews.md

## What is JumJeen จำจีนไม่จำเจ?

JumJeen: Learn Chinese through the logic of radicals—not just rote memorization.

Master Chinese characters with a radical-first approach powered by an interactive mindmap covering all 214 Kangxi radicals. Explore rich character etymology and mnemonic stories that show how ancient pictographs evolved into modern forms.

Key Features:
Interactive Radical Mindmap
Tap any radical to explore how characters branch out systematically. Visualizing conceptual connections helps you retain vocabulary naturally in organized clusters.

Character Etymology & Mnemonics
Discover ancient oracle/bronze scripts, component breakdowns, and vivid visual memory hooks for deeper understanding and accurate recall.

Pronunciation Studio
Listen to authentic standard Mandarin audio with dynamic tone-pitch contour graphs to help you master pitch and tones in context.

Smart Review System (SM-2 Spaced Repetition Flashcards)
An adaptive flashcard scheduler powered by the proven SM-2 algorithm. Review at the optimal time to lock characters into long-term memory without wasting time repeating words you already know well.

Radical Fusion Game
A fun, interactive mini-game where you drag and merge radicals to forge new characters—reinforcing character structure through play.

Complete 214 Kangxi Radicals + HSK Vocabulary
Search seamlessly via Hanzi, Pinyin, or keywords, complete with filters for stroke count and HSK difficulty levels.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| JumJeen | $7.99 | one-time |



## Version history (last 4 releases)

### 1.4.0 — 2026-09-20

Bring your learning journey to life.
• Collect Chinese character artwork in the new gallery through spaced-repetition review.
• Explore named journey stages and updated illustrations.
• Focus Mindmaps on lesson vocabulary, with an option to show all words.
• Enjoy smoother flashcard flips and more consistent lesson review progress.
• Track your learning with refreshed statistics and shuffle more words to keep reviewing.
• Get improved daily reminders with pronunciation, meanings, and memory tips in your selected language.

### 1.2.0 — 2026-09-19

What's New in Version 1.2.0
• Full English Support (Bilingual Experience): 
  JumJeen is now fully bilingual! You can switch seamlessly between English and Thai (or follow your device language). Includes English UI, complete English character definitions (powered by the Unihan Database), and localized radical categories.
• Mindmap & Visual Enhancements:
  Improved layout rendering and interactive responsiveness when exploring large radical families.
• Performance & Offline Reliability:
  Faster launch times, enhanced offline data durability, and general bug fixes.

### 1.0.3 — 2026-09-08

ในเวอร์ชัน 1.0.3 นี้ เราได้ปรับปรุงประสิทธิภาพและความเสถียรเพื่อประสบการณ์การเรียนรู้ที่ดียิ่งขึ้น:
• ปรับปรุงระบบฝึกเขียนลำดับขีด: แก้ไขการแสดงผลขีดสุดท้าย เพิ่มเสียงเอฟเฟกต์ตอบถูก พร้อมการเคลื่อนไหวที่ลื่นไหลยิ่งขึ้น
• ระบบสำรองและกู้คืนข้อมูล (Backup & Restore): สามารถส่งออกและกู้คืนความคืบหน้าการเรียนรู้ได้เองผ่านหน้าตั้งค่า สบายใจเรื่องข้อมูลหายหรือเมื่อเปลี่ยนเครื่อง
• ป้องกันข้อมูลสูญหาย: เพิ่มความปลอดภัยของบันทึกความคืบหน้าการทบทวน (SRS) ไม่ให้สูญหายเมื่ออัปเดตแอป
• ปรับปรุงประสิทธิภาพและหน้าตาแอปให้ใช้งานลื่นไหลและเสถียรยิ่งขึ้น

### 1.0.2 — 2026-09-06

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-22.*