랭콘아일랜드 4.0 vs Buff
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
랭콘아일랜드 4.0
This mobile program is designed for students to naturally learn and reinforce language acquisition through homework, review, and preview exercises linked to academy classes. It offers four difficulty levels for practice, accessible even to non-students.
- Mobile homework assignments
- Integrated with academy classes
- Language acquisition reinforcement
- Homework, preview, and review exercises
- Four difficulty levels of practice
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랭콘 재원생을 위한 모바일 숙제장 - 랭콘아일랜드 4.0 학원수업과 연계되어 숙제, 예/복습을 통해 언어습득에 필요한 6가지 요소를 자연스럽게 익히고 강화시키는 온라인 프로그램입니다. 네 개 난이도의 체험하기가 제공됩니다. 랭콘 재원생이 아니어도 체험할 수 있습니다. 최소사양 - iOS 10.0 이상 - iPhone 6 또는 iPad Air 이후 출시 기기
Buff
This app helps students from specific language academies reinforce vocabulary learned through i-Learning/p-Learning and prepare for word tests. Users can review learned words, track their progress, and level up their 'word power' as they memorize more terms.
- Vocabulary training for tests
- Review learned words
- Track memorization progress
- Level up word power
- Character customization
- Tablet and phone compatible
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※ Buff: Word Power 는 청담어학원 및 April α 어학원 수강생이 단어를 재밌게 학습할 수 있도록 도와주는 앱입니다. - Training 을 통해 i-Learning/p-Learning 에서 익힌 단어와 교육부 지정 단어를 학습할 수 있습니다. - Training 을 통해 단어 시험 대비를 해보세요. - 단어장에서 지금까지 학습했던 단어를 반복 학습할 수 있습니다. - 내가 암기한 단어 수에 따라 워드파워가 성장하고, 레벨업 할 수 있습니다. ※ Buff: Word Power의 주요 기능 - 태블릿과 휴대폰에서 이용 가능 - 청담어학원, THE OPEN 청담어학원, April α 어학원 재원생만 사용 가능 - 단어장을 통해 지금까지 학습한 단어를 점검 및 복습 가능 - 단어장에서 나와 상위 10%가 마스터한 단어 개수 확인 가능 - 캐릭터 설정 및 변경, 레벨업에 따른 아우라 획득 가능
Screenshots
Verdict
The clearest difference is rating: Buff at 3.5 against 랭콘아일랜드 4.0's 1.0. Buff also leads on review sentiment (43% vs 35%) and ratings volume (4 vs 1). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Buff holds the better App Store score, 3.5 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 35% of 랭콘아일랜드 4.0's written reviews are positive against 43% of Buff's.
랭콘아일랜드 4.0 ships an update monthly, Buff every 3 weeks. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.
| Parameter | 랭콘아일랜드 4.0 | Buff |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 3.5 (4 ratings) — better |
| Positive reviews | 34.8% of reviews | 43.5% of reviews — better |
| Number of ratings | 1 | 4 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.1 |
| Further details — not scored | ||
| Size | 2.4 GB | 228 MB |
| Age rating | 4+ | 4+ |
| Developer | Avalon Education | CREVERSE, Inc. |
Customer experience
랭콘아일랜드 4.0
Buff
In-app purchases
랭콘아일랜드 4.0
No in-app purchases
Buff
No in-app purchases
