Comparison

Hangul Sound Lab vs Malmoi

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Hangul Sound Lab

Features
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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 κ΅­λ¬Ό β†’ ꢁ물 and 같이 β†’ κ°€μΉ˜. 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/

About

Malmoi

Master Korean pronunciation and grammar with this comprehensive learning tool. It focuses on how words are actually spoken, offers conjugation drills, and includes a vast dictionary with multiple language translations. Prepare for exams with reading, listening, writing, and mock test modules.

Highlights
  • Pronunciation trainer with computed rules
  • Irregular verb and adjective conjugation drills
  • 44,000-word dictionary with multi-language meanings
  • 296 grammar patterns with examples
  • Reading, listening, and writing practice modules
  • TOPIK mock tests and writing scoring
  • Offline functionality
Features
Read full description

Korean is not read the way it is written. 값이 is [갑씨], κ΅­λ¬Ό is [ꢁ물], μ’‹λ‹€ is [쑰타]. Malmoi is built around that fact. β€’ Pronunciation trainer β€” the standard pronunciation rules, computed. Wrong answers are plausible misreadings of the same word, not other words, so you cannot guess by shape. β€’ Conjugation drills β€” γ…‚, γ„·, γ……, λ₯΄, γ…Ž irregulars sorted automatically, with the full conjugation table for every verb and adjective. β€’ 44,000 words with meanings, hanja origins, examples and the standard pronunciation published by the National Institute of Korean Language. Meanings come in English, Korean, Japanese, Chinese and Vietnamese at beginner and intermediate levels. β€’ 296 grammar patterns across six levels, each with attachment rules and two examples. β€’ Reading β€” passages, sentence ordering, newspaper headlines, sentence insertion. β€’ Listening β€” dialogues read aloud at study speed and exam speed. β€’ Writing β€” character count, style consistency, spoken-language check, and the official scoring rubric with a model answer. β€’ Mock tests for both exam types, with the level a total score would give. Everything runs on your device. No account, no server, and it works with no connection. Levels are an estimate. There is no official published word list, so levels start from the beginner/intermediate/advanced grading of the National Institute of Korean Language and are split further by corpus frequency. Mock scores are an estimate as well β€” the official conversion table is not published, and writing is self-scored. Not affiliated with or endorsed by NIIED or the TOPIK organisers. Dictionary data from the Korean Basic Dictionary, National Institute of Korean Language (KOGL Type 1). Also Wiktionary (CC BY-SA 4.0) and OpenSubtitles / FrequencyWords (CC BY-SA 4.0). Free: all of Level 1, the first words, grammar, reading and listening of every level, 15 drill questions a day per type, the TOPIK I mock test and writing tasks 51–52. No ads, no account. Malmoi Premium unlocks everything: Monthly (1 month) or Yearly (1 year) auto-renewing subscription, or the Lifetime Pass β€” a one-time purchase that never renews. Prices are shown in the app in your local currency. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel in your account settings. Already using Malmoi? If you used it before version 1.0.5, every feature stays free on that device, for good. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://inphilchoi.github.io/malmoi-privacy/

Screenshots

Hangul Sound Lab4 screens
Malmoi4 screens

Verdict

The call

The clearest difference is in-app purchases: Malmoi at none against Hangul Sound Lab's 1. Malmoi also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Hangul Sound Lab sells 1 one-off in-app purchase. Malmoi asks for nothing beyond the download.

UpkeepUpdate frequency

Hangul Sound Lab ships an update every 2 months, Malmoi every 3 days. Both last shipped on October 31, 2026.

Scorecard4 real differences Β· 4 level
Hangul Sound Lab versus Malmoi: the parameters behind the verdict, then further details
ParameterHangul Sound LabMalmoi
PriceFreeFree
Positive reviewsβ€”0.0% of reviews
Update frequencyEvery 2 monthsEvery 3 days β€” better
AdsYesNo β€” better
In-app purchasesYesNo β€” better
Monetizationβ€”Freemium
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.015.0 β€” better
Further details β€” not scored
Size10 MB39 MB
Age rating4+4+
DeveloperhashisoftINPHIL CHOI

In-app purchases

1 purchases

Hangul Sound Lab

One-time1
  • Remove Ads$2.99
None

Malmoi

No in-app purchases

Questions

Is Hangul Sound Lab free?
Hangul Sound Lab is free to download, with in-app purchases available.
Is Malmoi free?
Malmoi is free to download, with no in-app purchases.
Do Hangul Sound Lab or Malmoi have ads?
Hangul Sound Lab shows ads; Malmoi does not.
Which is updated more often, Hangul Sound Lab or Malmoi?
Hangul Sound Lab ships an update every 2 months, and Malmoi every 3 days. Most recently, Hangul Sound Lab was updated on October 31, 2026 and Malmoi on October 31, 2026.

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