Comparison

강의하는아이들 vs Buff

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

Head to head
About

강의하는아이들

Features
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대한민국 수학 완전학습 !! 설명할 수 없으면, 제대로 이해한 것이 아닙니다. "강의하는 아이들" 1. 강의하는 아이들 전용앱은? - 강의하는 아이들 학원 등록학생 학습용 전용앱 -학습시 스마트폰과 태블릿PC의 QR코드 인식 기능을 활용하는 차세대 스마트폰 학습 2.개념강의 및 틀린문제 강의시청 -개념 학습 및 반복 학습 -문제를 풀어보고 모르는 문제나 틀린문제를 물어 볼 필요없이 바로해결 -QR코드를 인식하면 바로 강의가 실행

About

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.

Highlights
  • Vocabulary training for tests
  • Review learned words
  • Track memorization progress
  • Level up word power
  • Character customization
  • Tablet and phone compatible
Features
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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

강의하는아이들4 screens
Buff4 screens

Verdict

The call

The clearest difference is review sentiment: Buff at 42% against 강의하는아이들's 24%. Buff also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.1 vs 15.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

강의하는아이들 ships an update every 2 months, Buff every 3 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
강의하는아이들 versus Buff: the parameters behind the verdict, then further details
Parameter강의하는아이들Buff
PriceFreeFree
Rating—3.0 (5 ratings) — better
Positive reviews24.0% of reviews41.7% of reviews — better
Number of ratings—5 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.1 — better
Further details — not scored
Size14 MB228 MB
Age rating9+4+
DeveloperOtwolineCREVERSE, Inc.

Customer experience

강의하는아이들

Written reviews50 reviews
Positive24.0%
Neutral14.0%
Negative62.0%

Buff

All ratings5 ratings
Positive40.0%
Neutral20.0%
Negative40.0%
Written reviews24 reviews
Positive41.7%
Neutral12.5%
Negative45.8%

In-app purchases

None

강의하는아이들

No in-app purchases

None

Buff

No in-app purchases

Questions

Is 강의하는아이들 free?
강의하는아이들 is free to download, with no in-app purchases.
Is Buff free?
Buff is free to download, with no in-app purchases.
Do 강의하는아이들 or Buff have ads?
Neither 강의하는아이들 nor Buff shows ads.
Which is updated more often, 강의하는아이들 or Buff?
강의하는아이들 ships an update every 2 months, and Buff every 3 weeks. Most recently, 강의하는아이들 was updated on October 29, 2026 and Buff on October 30, 2026.

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