# Hangul Sound Lab: Korean — Build letters and sound shifts

> Build letters and sound shifts (iPhone/iPad app by hashisoft.)

- Source: https://appshunter.io/ios/app/hangul-sound-lab-korean/id6801375218 (this page in markdown: same URL + `.md`)
- Developer: [hashisoft](https://appshunter.io/developer/466261475)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 10 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish
- Released: 2026-08-20
- Data updated: 2026-10-22

## What is Hangul Sound Lab?

Hangul Sound Lab helps you understand Hangul structure and Korean sound changes through hands-on building and listening.

BUILD HANGUL
Choose an initial, medial, and optional final consonant (batchim). The syllable is composed instantly using the official Unicode Hangul formula.

COMPARE SPELLING AND SOUND
See examples such as 국물 → 궁물 and 같이 → 가치. Tap each card to hear Korean speech.

FIVE SOUND-CHANGE TYPES
Learn nasalization, liquid assimilation, aspiration, palatalization, and tensification with words, realized sounds, meanings, and audio.

LEARNING RECORD
Completed Hangul builds are stored on your device.

STRUCTURED COURSE
Study 500 original questions across 100 levels, with listening, pronunciation, review, history, statistics, achievements, ranking, and multiple learner profiles.

The interface supports Japanese, English, Simplified Chinese, Korean, Spanish, French, and German.

Terms of Use
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy
https://hashisoft.jp/koreanland/privacy/

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Is Hangul Sound Lab safe?

Not enough ratings yet to assess Hangul Sound Lab.

## Is Hangul Sound Lab legit?

Hangul Sound Lab: Korean appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Hangul Sound Lab is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.1 — 2026-10-08

Added Hangul Sound Lab for building syllables and comparing spelling with real pronunciation. Explore five Korean sound-change types, hear audio, and save completion progress. Also fixed banner ads overlapping the tab bar.

### 1.0 — 2026-08-21

No release notes.

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All apps by hashisoft: https://appshunter.io/developer/466261475

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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 2026-10-22.*