홀링 vs Start Math

선생님 없이 스스로 완성하는 초등수학, 홀링이 ‘슈퍼앱’으로 새로워졌습니다! 단순한 학습 앱을 넘어, 동영상 강의부터 문제 풀이, 오답 노트, 정밀 AI 학습 분석까지 하나로 해결하는 초등수학 슈퍼앱 홀링을 만나보세요. 완전히 새로워진 UX/UI로 아이들이 더 쉽고 즐겁게 수학 섬을 탐험할 수 있습니다. *홀링은 태블릿PC에서 다운로드 및 이용이 가능합니다. * 인앱 구매를 통해 기념 구독을 구매하실 수 있습니다. - 자동 구독 • 1개월($34.99) 및 12개월($399.99) • 모든 구독 상품은 구매시 즉시 학습, 보고서등 모든 서비스에 접근 및 사용이 가능합니다. • 구독은 구매 확인 시 매쓰홀릭 계정으로 유지되며 만료일이 끝날시 (선택된 기간)으로 자동결제로 연장됩니다. • 현재 구독은 활성 구독 기간 동안 취소할 수 없지만 구매 후 iTunes 계정 설정을 방문하여 구독을 관리하거나 자동결제를 취소할 수 있습니다. - 약관 • 개인 정보 보호 : https://matholic.com/policy/privacy • 이용 약관: https://matholic.com/policy/service

School mathematics as one path: concept, worked example, practice, review. No account. No internet required. ■ It traces back to where you actually got stuck If you keep missing quadratic equations because the real gap is in factoring, a hundred more will not help. This app collects the concepts behind your wrong answers, walks back the prerequisites and says where to restart. A lesson you reach that way opens even if locked, and never locks again — pointing at the gap and then closing the door would be pointless. ■ Wrong answers come back just as you are about to forget Every miss goes into your review notebook and returns after 1, 3, 7, 16 and 35 days. Get it right and the interval grows; miss it again and it restarts. You can tag why you missed it — an arithmetic slip, a concept you did not know, or a misread question. Slips do not count against concept mastery, and wait three days instead of one. Why you missed it matters more than how many you missed. ■ Formulas are typeset, and read aloud properly No formula images. Rule thickness, radical slant and exponent size follow typesetting rules, so nothing blurs when you enlarge the text. With VoiceOver they are read in natural Korean word order. Concept-card graphs have draggable coefficients: that the sign of a flips a parabola is faster to see once than to read twice. ■ When the exam is two weeks away Enter the scope and the minutes you can give each day. The plan follows prerequisite order and keeps the last two days for review. If time is short, it drops the hardest problems and says so. ■ Room to work it out by hand Every problem has a writing space beside it; on iPad the screen splits, problem on one side and your working on the other. Your working is saved per problem and returns in the wrong-answer notebook — where it went wrong matters more than what. Handwriting is not graded. ■ One card for a parent A week's work can be sent as one card — time studied, problems solved, lessons finished. No rank, no comparison, nothing sent automatically: the student taps to send and sees first what will go. ■ Also · Concept map — what you know, what you do not, and the path · Statistics — streak, progress, causes of mistakes, solving time · Answer statistics — how often a problem is missed. Off by default · Daily problem widget — free-section only, so a tap never hits a paywall · Review reminders — off by default; at most once a day · iCloud sync · iPad two-pane · Dark Mode · Dynamic Type ■ What is included Thirteen subjects of the Korean curriculum: middle school years 1 to 3, Common Math 1 and 2, Algebra, Calculus I, Probability & Statistics, Calculus II, Geometry, Math for AI, Math for Economics and Math for Work — 91 units, 461 lessons, 4,610 problems. Mock-exam sets for the March, June and September 2026 assessments: no original questions, but a walkthrough and an original look-alike problem per item (90). A fifth tier, Challenge: 212 exam-style problems spanning several lessons of a unit, four per unit in the seven high-school subjects. All 143 graphs and diagrams are drawn from coordinates, not images. Concept cards come in five kinds, including misconception cards. ■ How much is free The opening lessons of every unit are entirely free — concepts, examples, practice. One further lesson gives concepts and worked examples, with the paywall at its problems. See how the app teaches before you buy. ■ Purchases One pack per subject — buy only the years you need. One-time purchases, not subscriptions: nothing recurs, nothing expires. Family Sharing is supported; content updates are free to everyone who bought. ■ Privacy No sign-up, no login, no developer server, no ads. Anonymous usage statistics — no advertising identifier, nothing tied to you. Reporting a problem sends what you wrote and the answer you gave, shown before you tap. Answer statistics are off by default; turned on, your answer goes once per problem. The rest stays on your device.