fewfew vs CodeStudy

알고리즘 공부, 매일 한 문제면 충분해요. 큰맘 먹을 필요 없어요. 지하철에서, 자기 전에, 잠깐 비는 시간에 — 폰을 열고 한 문제만 풀어보세요. [ 매일 조금씩, 잔디로 쌓이는 실력 ] 문제를 풀면 GitHub에 자동으로 커밋돼요. 채워지는 잔디를 보다 보면 어느새 꾸준함이 습관이 됩니다. [ 서버 없이, 폰에서 바로 실행 ] 인터넷이 끊겨도 괜찮아요. 파이썬·C·C++·자바·자바스크립트를 폰 안에서 바로 돌려보고 결과를 확인해요. [ 모바일에 딱 맞는 에디터 ] 구문 강조, 자동완성, 특수문자 키보드까지. 작은 화면에서도 코드가 편해요. [ 성장이 보이면 멈추기 어려워요 ] 풀이 통계, 난이도 분포, 25단계 티어. 어제보다 나아진 내가 한눈에 보여요. [ 혼자가 아니에요 ] 같은 목표를 가진 사람들과 후기를 나누고, 막히면 물어보세요. 오늘부터, 하루 한 문제.

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.