Comparison

개념원리ai vs Chalcack

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

Head to head
About

개념원리ai

This app combines a popular math textbook with AI to offer personalized learning. It provides free assessments with detailed explanations, allows users to create custom problem notes, and features a ranking system for friendly competition. Prepare for exams with AI-predicted questions and access a vast problem bank for all middle and high school levels.

Highlights
  • Personalized assessments with free detailed explanations
  • Customizable problem notes for focused review
  • AI-predicted exam questions based on school and curriculum
  • Extensive problem bank for all grades
  • Interactive ranking system and missions for motivation
  • Study groups and Q&A for collaborative learning
Read full description

"수학이 쉬워지는 습관, 개념원리ai" 중고등학교 1등 수학 참고서 개념원리와 AI의 만남! [평가] 완벽한 단원별 평가와 무료 해설 서비스 원하는 단원의 평가를 진행하고, 상세한 강의와 해설까지 제한없이 모두 무료로 제공받아요. 내 수준에 맞는 맞춤 평가로 실력을 정확히 진단하고, 부족한 부분은 즉시 보완할 수 있어요. 평가 후 제공되는 전문 강사의 해설 강의로 틀린 문제도 완벽하게 이해할 수 있습니다. [문제 노트] 나만의 맞춤형 학습 시스템 중요한 문제를 저장하여 나만의 문제 노트를 만들어보세요. 저장된 문제는 여러 난이도로 추가 학습이 가능하며, 해당 문제와 관련된 기본 개념부터 심화문제까지 모두 마스터할 수 있어요. 약점 문제를 집중 관리하여 효율적인 복습이 가능합니다. [랭킹] 친구들과 함께하는 즐거운 수학 경쟁 친구들과 다양한 미션을 통해 포인트를 획득하고 순위를 겨뤄보세요. 일일 문제 풀기, 연속 학습일 달성, 정답률 향상 등 재미있는 미션으로 동기부여를 받을 수 있어요. 랭킹 시스템으로 학습에 대한 성취감과 경쟁심을 동시에 자극합니다. [AI기출] 이번 시험에 뭐 나올지 개념원리ai가 다 찍어드려요! 학교와 시험 범위를 입력하면, 우리 학교 예상 시험문제를 다운로드 받을 수 있어요. 답을 입력하면 자동 채점과 취약 단원 분석까지 한 번에! 약점 문제는 무제한으로 풀어보며 내신을 완벽하게 대비하세요. [교재 학습] 22개정 콘텐츠 업데이트 완료! 전국 중고등학생 선행 필수 교재, 개념원리와 RPM을 개념원리ai에서 만나보세요. 개념 강의부터 연산 훈련, 유형 학습까지! 최고의 수학 전문가가 제안하는 커리큘럼대로 따라가다보면 누구나 수학을 정복할 수 있어요. [문제은행] 12만개 문제로 실력과 자신감 UP 중1부터 고3까지, 모든 학년의 수학 커리큘럼을 한 앱에서! 원하는 학년과 단원의 다양한 문제를 풀어보며 체계적으로 실력을 쌓을 수 있어요. 쉬는 시간에 가볍게 풀 수 있는 OX 퀴즈부터 기출 변형 고난이도 문제까지 만나보세요. [질문답변 & 스터디그룹] 혼자 공부하기 힘들 땐, 친구들과 함께! 질문답변 게시판에서 어려운 문제는 물어보고, 쉬운 문제는 설명하며 수학 실력을 쑥쑥 올려보세요. 스터디그룹에서는 실시간으로 친구들과 문제를 공유하고, 공부 팁을 나눌 수 있어요. 함께 공부하면 더 오래, 더 즐겁게 할 수 있으니까요! - 문의하기 Email: edupanions@gmail.com | Tel: 02-3415-0763

About

Chalcack

This AI-powered study companion helps students master difficult subjects by providing step-by-step solutions and explanations. It recognizes problems from photos and offers a personalized study vault for review. Get instant academic support anytime, anywhere.

Highlights
  • Snap and solve problems from photos
  • AI-powered step-by-step explanations
  • Support for Math, Science, English, and more
  • Master core concepts and principles
  • Personal study vault and review library
  • 24/7 AI academic assistance
Features
Read full description

Don't Just Study. Study With Your Crush. Tired of staring at cold, robotic calculators and boring answer keys? Studying doesn’t have to feel lonely or stressful anymore. Meet Chalcack—the viral AI homework helper where your personal AI Crush teaches you step-by-step, cheers you on through tough problem sets, and turns every "I'm stuck" into an "I get it!" Simply snap a photo. While ordinary photo math scanners and generic answer bots just spit out raw numbers, your Crush breaks down complex problems with patience, interactive deep thinking, and personalized encouragement. ■ STUDY WITH YOUR CRUSH — CHOOSE OR CREATE • 5,000+ AI Crushes Ready to Tutor: From idols and anime icons to book boyfriends and top-student classmates, pick the study partner who motivates you most. • Create Your Dream Crush: Design your custom AI tutor in seconds! Upload a photo, write their bio, customize their personality, and decide whether to keep them private or share with friends via Buddy Code. • 1-on-1 Interactive Crush Chat: Stuck on step 3? Ask follow-up questions directly. Your Crush explains the exact logic, points out sneaky traps, and celebrates when you finally master it. ■ WHY CHALCACK BEATS ORDINARY SOLVERS • Snap & Understand in Seconds: Instant recognition for algebra, calculus, physics, chemistry, grammar, and history. Handwritten or typed—just snap and learn. • Solve Smarter, Learn Faster: Don't settle for tools that merely solve blindly. Chalcack shows you the "how" and the "why" behind every step so you actually boost your GPA. • Got Math Anxiety? We've Got You Covered: Say goodbye to confusing textbook jargon. Your Crush explains tough concepts with the clarity and warmth of a private whiteboard session. • Stellar Exam Prep: Every scanned problem is automatically saved to your Personal Vault. Review past mistakes, build targeted study sheets, and ace your SAT, ACT, AP, and final exams. ■ COMPREHENSIVE ACADEMIC COVERAGE • Mathematics: Pre-Algebra, Algebra, Geometry, Trigonometry, Pre-Calculus, Calculus (Limits, Derivatives, Integrals), Linear Algebra, and Statistics. • Science: Physics, Chemistry, Biology, and Earth Science. • Humanities & Languages: Grammar, Reading Comprehension, Essay Structure, Literature, and History. • Standardized Tests: SAT®, ACT®, AP® Exams, and IB curriculum. ■ THE ULTIMATE STUDY TOOLBOX • 24/7 AI Homework Helper: Get unblocked anytime—whether it's 2 PM after school or 2 AM before a big test. • Custom Tutor Personalities: Switch between a patient mentor, an encouraging cheerleader, or a witty genius who pushes you to be your best. • Distraction-Free Mastery: Beautiful, clean interface designed to keep you in the zone. ■ WHO IS CHALCACK FOR? • Anyone tired of studying alone and needing genuine motivation to finish homework. • Visual Learners who need engaging, step-by-step explanations instead of dry answer sheets. • Students looking to boost their GPA without paying $50+/hr for a private tutor. • High achievers prepping for AP, SAT, or university exams. Stop dreading homework. With Chalcack, the ultimate study partner and step-by-step solution are always just a snap away. Download Chalcack now and start studying with your crush! ■ SUBSCRIPTION INFORMATION • Plan: Chalcack PRO • Duration: 1 Month (Auto-renewal) • Price: $9.99/month (or local equivalent) • Payment will be charged to your Apple ID account at confirmation of purchase. • Subscription automatically renews unless canceled at least 24 hours before the end of the current period. • Manage your subscription and auto-renewal settings in your App Store Account Settings. ■ Privacy Policy: https://www.chalcack.com/privacy ■ Terms of Use (EULA): https://www.chalcack.com/terms

Screenshots

개념원리ai4 screens
Chalcack4 screens

Verdict

The call

The clearest difference is rating: Chalcack at 5.0 against 개념원리ai's 4.2. Chalcack also leads on update cadence (every 2 days vs fortnightly). 개념원리ai's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, review sentiment, ratings volume 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. Chalcack sells 3 in-app purchases, starting at $9.99 per month. 개념원리ai asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chalcack holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 12 respectively. Written reviews point the same way: 95% of 개념원리ai's written reviews are positive against 97% of Chalcack's.

UpkeepUpdate frequency

개념원리ai ships an update fortnightly, Chalcack every 2 days. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
개념원리ai versus Chalcack: the parameters behind the verdict, then further details
Parameter개념원리aiChalcack
PriceFreeFree
Rating4.2 (5 ratings)5.0 (12 ratings) — better
Positive reviews95.1% of reviews97.2% of reviews — better
Number of ratings512 — better
Update frequencyFortnightlyEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.5
Further details — not scored
Size153 MB49 MB
Age rating4+4+
Developer(주)개념원리Dong Hae Jang

Customer experience

개념원리ai

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews61 reviews
Positive95.1%
Neutral1.6%
Negative3.3%

Chalcack

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews36 reviews
Positive97.2%
Neutral2.8%
Negative0.0%

In-app purchases

None

개념원리ai

No in-app purchases

3 purchases

Chalcack

Subscriptions3
  • Premium subscription$9.991 Month
  • Yearly Pro (Special Offer)$59.991 Year
  • Yearly Premium subscription$79.991 Year

Questions

Is 개념원리ai free?
개념원리ai is free to download, with no in-app purchases.
Is Chalcack free?
Chalcack is free to download, with in-app purchases available.
Which has better reviews, 개념원리ai or Chalcack?
Chalcack is rated higher. 개념원리ai averages 4.2 out of 5 from 5 ratings, while Chalcack averages 5.0 from 12 ratings.
Do 개념원리ai or Chalcack have ads?
Chalcack shows ads; 개념원리ai does not.
Which is updated more often, 개념원리ai or Chalcack?
개념원리ai ships an update fortnightly, and Chalcack every 2 days. Most recently, 개념원리ai was updated on October 19, 2026 and Chalcack on October 18, 2026.

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