Comparison

개발 어원 사전 vs Compendium Lab

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

Head to head
About

개발 어원 사전

Features
Read full description

'버그(bug)'는 왜 버그일까요? 진짜 나방 때문이었습니다. 개발 어원 사전은 매일 쓰는 개발 용어가 왜 그런 이름을 갖게 됐는지, 그 어원과 작명의 맥락을 한국어로 풀어주는 사전입니다. 단어의 철자만 외우는 공부는 금방 잊힙니다. '왜 이 이름인가'를 알면 개념이 오래 남습니다. 면접을 앞둔 주니어 개발자, CS를 배우는 전공·비전공 학생, 용어의 진짜 뜻이 궁금한 모든 개발자를 위해 만들었습니다. [주요 기능] 어원·작명 관점 설명 / 즉시 검색·자동완성 / 사전에 없는 용어는 AI(Claude)가 설명 / 북마크 / 검색 기록. [알아두실 점] 모든 설명은 AI가 생성하며 사람의 개별 검수를 거치지 않습니다(앱 내 제보로 개선). 사전에 없는 용어는 AI가 새로 생성하며, 하루 이용 한도 내에서 무료로 쓸 수 있습니다. 이미 수록된 용어 검색은 제한이 없습니다. 로그인·계정 불필요. 문의: oddmuffinstudio@gmail.com

About

Compendium Lab

Features
Read full description

Study mathematics, computer science, and artificial intelligence in one offline-first app. Read 94 lessons across 18 chapters in Korean, English, Japanese, or Chinese, with equations and diagrams preserved in every edition. Save progress and bookmarks, and edit Python examples. Compatible examples execute entirely on your device. Study sessions turn reading into practice through cumulative review, closed-book recall, and hands-on implementation. WHAT YOU GET - 18 chapters, 94 lessons: linear algebra, calculus, probability, statistics, algorithms, data structures, computer vision, graph neural networks, and applied AI - Four language editions of every lesson, switchable from the reader toolbar - An on-device Python lab: edit any code block, run the compatible subset with no server round trip - Cumulative review and closed-book recall sessions built from each lesson - Progress, bookmarks, and lab drafts stored on device and synced through your own private iCloud PRICING Chapters 1 and 2 are free to read in full. A single one-time purchase unlocks all 18 chapters and the complete Python lab. No subscription, no ads, no account. PRIVACY No analytics, no advertising, no tracking. Lessons and the Python runtime are bundled in the app and work with no network connection. Support and privacy policy: https://blue-code.github.io/legal/compendium-lab/support.html

Screenshots

개발 어원 사전4 screens
Compendium Lab4 screens

Verdict

The call

The clearest difference is in-app purchases: 개발 어원 사전 at none against Compendium Lab's 1. On price, update cadence, ads 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. Compendium Lab sells 1 one-off in-app purchase. 개발 어원 사전 asks for nothing beyond the download.

UpkeepUpdate frequency

개발 어원 사전 ships an update monthly, Compendium Lab every 4 weeks. Both last shipped on October 16, 2026.

Scorecard1 real difference · 5 level
개발 어원 사전 versus Compendium Lab: the parameters behind the verdict, then further details
Parameter개발 어원 사전Compendium Lab
PriceFreeFree
Update frequencyMonthlyEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size38 MB106 MB
Age rating12+4+
Developersoyeon leeByoungho Kim

In-app purchases

None

개발 어원 사전

No in-app purchases

1 purchases

Compendium Lab

One-time1
  • Compendium Lab Pro$5.99

Questions

Is 개발 어원 사전 free?
개발 어원 사전 is free to download, with no in-app purchases.
Is Compendium Lab free?
Compendium Lab is free to download, with in-app purchases available.
Do 개발 어원 사전 or Compendium Lab have ads?
Neither 개발 어원 사전 nor Compendium Lab shows ads.
Which is updated more often, 개발 어원 사전 or Compendium Lab?
개발 어원 사전 ships an update monthly, and Compendium Lab every 4 weeks. Most recently, 개발 어원 사전 was updated on October 16, 2026 and Compendium Lab on October 16, 2026.

Other comparisons