Comparison

슈투데이 vs CodeStudy

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

Head to head
About

슈투데이

Features
Read full description

슈투데이는 숭실대학교 컴퓨터학부 학생회에서 공식적으로 운영하는 앱입니다. [기능] *로그인 별도의 회원가입 절차 없이, 유세인트로 로그인하여 학부 맞춤 서비스를 제공받아 보세요. *공지사항 슈투데이를 이용해 모든 학교 공지사항을 모아서 확인하고, 새로운 공지사항이 등록되거나 수정될 때마다 알림을 받아보세요. SSU:Catch, 총학생회, 컴퓨터학부, 글로벌미디어학부의 공지사항 확인이 가능해요. 앱 출시 이전의 공지사항(약 1만 2천여 개)도 모두 확인하실 수 있어요. *스터디룸 예약 2023학년도 2학기부터 스터디룸 예약제가 운영되고 있습니다. 대상: 2층 스터디룸 전체(컴퓨터학부), 5층 스터디룸 일부(글로벌미디어학부, 미디어경영학과) 슈투데이를 통해 정보과학관에 위치해 있는 스터디룸의 예약 현황을 간편하게 확인하고 원하는 시간을 예약하세요. [지원] https://open.kakao.com/o/sjCaLNTf [서비스 제공 학과/부] IT대학(컴퓨터학부, 글로벌미디어학부, 미디어경영학과) [개발자 정보] 개발/디자인: 제27대 컴퓨터학부 부학생회장 김종호 기여: https://github.com/jonghokim27/ssutoday-v3

About

CodeStudy

Features
Read full description

ChatGPT gives you answers and you forget them an hour later. Tutorials are fun until you can't recall a thing. CodeStudy makes you make the answer — and remember it. CodeStudy is an AI coding tutor that teaches with the Socratic method. Instead of dumping code on you, it asks the right questions until you figure it out yourself. The "aha" moment is yours, not the AI's. That's why it sticks. Pick your track: • Swift / iOS — for app developers • Spring / Kotlin — for backend developers Both tracks ship with 50 hand-crafted concepts and the same Socratic dialogue engine. Switch tracks anytime in Settings. — How it works — You pick one concept (Optionals, SwiftUI State, Kotlin null safety, JPA transactions…) and have a real conversation with the tutor. It probes your understanding, gives analogies, asks you to predict what code does. When you've actually got it, it marks the concept "Mastered" — and only then. No multiple-choice. No copy-paste. No "great job!" filler. Just genuine back-and-forth until the idea clicks. — What's in each track — Swift / iOS (50 concepts) Variables, Optionals, Closures, Protocols, Generics, async/await, SwiftUI state, Concurrency, Macros, and more. Spring / Kotlin (50 concepts) val/var, null safety, data classes, Coroutines, Spring Boot DI, JPA, transactions, REST design, large-scale system patterns, and more. — Features — • 100+ concepts across two tracks (50 per track) • Daily learning rhythm with streaks • Streak Shield — skip a day, your streak survives • Track-scoped study history — revisit any mastered concept and replay your conversations • Mastery tracking that actually means something (not "you saw it once") • Localized for Korean and English • Anonymous by default — no account, no email, just learn • Open privacy practices — see PRIVACY.md in our repo — Who is it for? — iOS developers learning Swift seriously. Backend developers working with Spring/Kotlin. Bootcamp graduates filling conceptual gaps. Self-taught coders who keep getting stuck on the same things. Anyone tired of tutorials they forget by next week. — What's not in CodeStudy — No trackers. No analytics SDKs. No ads. No upselling. Just the tutor. — Built by — A solo developer who got frustrated with how today's coding tools optimize for the wrong thing (giving answers fast). CodeStudy optimizes for what actually matters: long-term retention. Try it. Pick a track. Master your first concept in 5 minutes. The dialogue is the lesson.

Screenshots

슈투데이3 screens
CodeStudy4 screens

Verdict

The call

The clearest difference is update cadence: CodeStudy at every 6 days against 슈투데이's every 2 weeks. 슈투데이's advantage is iOS requirement (15.1 vs 18.0). 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

슈투데이 ships an update every 2 weeks, CodeStudy every 6 days. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 4 level
슈투데이 versus CodeStudy: the parameters behind the verdict, then further details
Parameter슈투데이CodeStudy
PriceFreeFree
Update frequencyEvery 2 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size28 MB4 MB
Age rating4+4+
DeveloperJongho KimByeongYun In

In-app purchases

None

슈투데이

No in-app purchases

None

CodeStudy

No in-app purchases

Questions

Is 슈투데이 free?
슈투데이 is free to download, with no in-app purchases.
Is CodeStudy free?
CodeStudy is free to download, with no in-app purchases.
Do 슈투데이 or CodeStudy have ads?
Neither 슈투데이 nor CodeStudy shows ads.
Which is updated more often, 슈투데이 or CodeStudy?
슈투데이 ships an update every 2 weeks, and CodeStudy every 6 days. Most recently, 슈투데이 was updated on October 16, 2026 and CodeStudy on October 11, 2026.

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