Comparison

KxCoding vs CodeStudy

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

Head to head
About

KxCoding

Features
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From the moment you start learning Swift to the moment you finish your iOS app. KxCoding is your place to learn Swift and development for Apple platforms. Explore structured video courses, hands-on tutorials, and articles covering the latest developmentsβ€”all in one place. β–  Structured Courses, from Fundamentals to Real-World Skills β€’ Learn step by step, from Swift fundamentals to SwiftUI, UIKit, RxSwift, and the key technologies you need to build apps. β€’ Preview each course's overview, difficulty level, curriculum, and length, then choose the course that's right for you. β€’ Follow detailed explanations and a wide range of examples to connect concepts with real code. β–  Read, Practice, and Build with Tutorials β€’ Explore the topics you need through short, clear, step-by-step explanations. β€’ Go beyond reading with code examples, quizzes, and challenges that help you check your understanding and learn by doing. β€’ Choose what interests you, from Swift fundamentals to SwiftUI, and learn at your own pace. β–  Keep Up with the Latest Developments β€’ Catch up on the latest news from Swift, Xcode, WWDC, and Apple platforms at a glance. β€’ Bookmark articles you want to revisit and find them quickly anytime. β–  A Player Built to Keep You Focused β€’ Pick up right where you left off. β€’ Customize playback speed, skip controls, and more to fit the way you learn. β€’ For lectures that include subtitles, turn them on or off and adjust the text size. β€’ Mark lectures as complete and manage bookmarks right from the player. β–  See Your Learning Progress β€’ Set a weekly learning goal and track your study time and progress toward it. β€’ See your learning streak and activity at a glance and build a consistent learning habit. β€’ Manage course progress, questions, bookmarks, reviews, and certificates with ease in Classroom. β–  Keep Learning Wherever You Are β€’ Learn comfortably with native apps optimized for iPhone, iPad, and Mac. β€’ Sign in to your KxCoding account to sync your course enrollments and learning progress across supported environments. From first-time coders to developers looking to expand their practical skills. Write your next line of code with KxCoding today. Important Information β€’ Some courses and features require sign-in or a separate purchase. β€’ Content and feature availability may vary by course and environment. β€’ An internet connection is required to access content. Support https://www.kxcoding.com/help KxCoding Website https://www.kxcoding.com Terms of Use https://www.kxcoding.com/help/agreement/terms-of-use Privacy Policy http://kxcoding.com/help/agreement/privacy-policy

About

CodeStudy

Features
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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 β€” 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: β€’ Swift / iOS β€” for app developers β€’ Spring / Kotlin β€” for backend developers Both tracks ship with 50 hand-crafted concepts and the same Socratic dialogue engine. Switch tracks anytime in Settings. β€” How it works β€” 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" β€” and only then. No multiple-choice. No copy-paste. No "great job!" filler. Just genuine back-and-forth until the idea clicks. β€” What's in each track β€” 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. β€” Features β€” β€’ 100+ concepts across two tracks (50 per track) β€’ Daily learning rhythm with streaks β€’ Streak Shield β€” skip a day, your streak survives β€’ Track-scoped study history β€” revisit any mastered concept and replay your conversations β€’ Mastery tracking that actually means something (not "you saw it once") β€’ Localized for Korean and English β€’ Anonymous by default β€” no account, no email, just learn β€’ Open privacy practices β€” see PRIVACY.md in our repo β€” Who is it for? β€” 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. β€” What's not in CodeStudy β€” No trackers. No analytics SDKs. No ads. No upselling. Just the tutor. β€” Built by β€” 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

KxCoding4 screens
CodeStudy4 screens

Verdict

The call

The clearest difference is in-app purchases: CodeStudy at none against KxCoding's 8. CodeStudy also leads on update cadence (every 6 days vs every 3 months). KxCoding's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. KxCoding sells 8 in-app purchases, starting at $49.99 per month. CodeStudy asks for nothing beyond the download.

UpkeepUpdate frequency

KxCoding ships an update every 3 months, CodeStudy every 6 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

Scorecard3 real differences Β· 3 level
KxCoding versus CodeStudy: the parameters behind the verdict, then further details
ParameterKxCodingCodeStudy
PriceFreeFree
Update frequencyEvery 3 monthsEvery 6 days β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, Mac β€” betteriPhone
Requires iOS17.0 β€” better18.0
Further details β€” not scored
Size47 MB4 MB
Age rating4+4+
DeveloperKeun young KimByeongYun In

In-app purchases

8 purchases

KxCoding

Subscriptions1
  • Basic Pass 30일 ꡬ독$49.991 Month
One-time7
  • Days (D-Day μ•±)$19.99
  • Essential Unit Test$19.99
  • Essential Swift Macro$19.99
Show 4 more
  • Essential Auto Layout$19.99
  • Memo μ•± λ§Œλ“€κΈ°$49.99
  • Shiny Day (날씨 μ•±)$49.99
  • Apple μ‹œκ³„ μ•± 클둠 μ½”λ”©$59.99
None

CodeStudy

No in-app purchases

Questions

Is KxCoding free?
KxCoding is free to download, with in-app purchases available.
Is CodeStudy free?
CodeStudy is free to download, with no in-app purchases.
Do KxCoding or CodeStudy have ads?
Neither KxCoding nor CodeStudy shows ads.
Which is updated more often, KxCoding or CodeStudy?
KxCoding ships an update every 3 months, and CodeStudy every 6 days. Most recently, KxCoding was updated on October 7, 2026 and CodeStudy on October 11, 2026.

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