Korean Dictionary + vs Sejong Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Korean Dictionary +
This app provides a comprehensive bilingual dictionary for English and Korean, offering offline translation and pronunciation for over 350,000 words and phrases. It includes features like image text scanning, a phrasebook, vocabulary games, and a word of the day to aid language learning.
- Bilingual English-Korean dictionary
- Offline translation and pronunciation
- Image text scanning
- Vocabulary games and flashcards
- Phrasebook with common phrases
- Word of the day
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• Bilingual English to Korean and Korean to English dictionary • Korean to English word and phrase translator and translation • Over 350K words and phrase can be used in offline • Offline pronunciation and translate any sentences • Scan text in image by pointing camera to search in dictionary • Designed for student, teacher, tourist and language learners • Having thesaurus, synonyms and antonyms • Translate individual words, phrases, or whole sentences • Tap a word for cross searching • Bookmark and Recent history for instant recall • Word of the day to learn IELTS, TOEFL and SAT words • Multiple games help to improve English and Korean vocabulary • Offline Pronunciation helps to learn words properly • Flash card and Word of the Day helps to improve vocabulary • Phrase book, Phrase of the day and Phrase Card helps to speak common phrases • Quote of the Day improves wisdom and motivation
Sejong Study
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Sejong Study brings four Korean tools into one app, with nothing locked behind in-app purchases. • Course — a 24-chapter story that follows Han Jiwoo through her first year at a Seoul design office and her visits home to Jeonju. Every chapter has a dialogue with sentence-by-sentence English, grammar notes, vocabulary and a quiz, and polite and casual speech are used naturally for each relationship. • Stories — five classic fables told in Korean (Red Riding Hood, The Tortoise and the Hare, The Three Little Pigs, Peter Rabbit, Jack and the Beanstalk) with tap-to-translate and audio. • Flashcards — spaced-repetition decks of everyday Korean words and grammar patterns. • Dictionary — search in Hangul or English, with romanisation and audio. Language Basics guides explain Hangul, particles, speech levels and Korean numbers as you go.
Screenshots
Verdict
The clearest difference is price: Korean Dictionary + at Free against Sejong Study's $1.99. Korean Dictionary + also leads on update cadence (every 2 months vs every 5 months). Sejong Study's advantage is in-app purchases (none vs 6) and ads (none vs shown). On device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Korean Dictionary + is free to download; Sejong Study costs $1.99 up front. Korean Dictionary + sells 6 one-off in-app purchases. Sejong Study asks for nothing beyond the download.
Korean Dictionary + ships an update every 2 months, Sejong Study every 5 months. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.
| Parameter | Korean Dictionary + | Sejong Study |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.5 (216 ratings) — better | — |
| Positive reviews | 55.2% of reviews | — |
| Number of ratings | 216 — better | — |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18.2 |
| Further details — not scored | ||
| Size | 36 MB | 380 MB |
| Age rating | 4+ | 4+ |
| Developer | iThinkdiff | Jeffrey Dick |
Bugs and requests
Korean Dictionary +
Reported bugs
8 issues- Pronunciation guide doesn't work
- No sound from the app after paying for pronunciation
- Scan mode doesn't work for Korean
- App freezes and crashes after downloading translator addition
- Pro upgrade is currently unavailable
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- Intrusive autoplaying fullscreen ads make app unusable
- Ads interrupt workflow for paying customers
- Free version cut down too much
Requested features
19 requests- Allow listening to pronunciation without paying
- Improve pronunciation guide functionality
- Make pronunciation accessible for free
- Include more definitions
- Reduce ads
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- Fix Pro upgrade availability
- Improve scan mode for Korean
- Translate phrases or sentences
- Offer a Korean version similar to Pleco
- Fix app freezing/crashing after translator addition
- Remove intrusive ads
- Make word of the day more useful
- Include noun forms prominently
- Provide better explanations for verb forms
- Improve romanization for travelers
- Expand vocabulary range
- List base/root words
- Add dark mode option
- Make it quicker and easier to use
Sejong Study
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Korean Dictionary +
- Remove Advertise$0.99
- Pronunciation$0.99
- Online Translator$0.99
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- Flash Card$0.99
- Phrase Book$0.99
- Pro Upgrade$2.99
Sejong Study
No in-app purchases
Questions
Is Korean Dictionary + free?
Is Sejong Study free?
Do Korean Dictionary + or Sejong Study have ads?
Which is updated more often, Korean Dictionary + or Sejong Study?
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