HandMath 핸드매스 - 초중고 수학 개념

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About this app

HandMath is a math concept lesson app tailored to the 2022 Revised Curriculum, covering topics from 1st grade elementary school to high school calculus and geometry. A guardian (aged 19 or older) must sign up, and the child learns together using the guardian's account.

■ Concept Lessons (Basic)

· Units and sub-units are learned sequentially by grade, semester, and subject.

· For each concept, the "why" is explained, along with accompanying diagrams of shapes and graphs.

· Examples are solved step-by-step in the order of "Think First → Check."

· Explanations are read aloud using the "Listen" button.

· If you need to review a previously learned concept, you can immediately navigate to that sub-unit to review it.

■ Advanced

· Learn additional detailed and advanced concept sub-units within each unit.

· Key strategies and detailed explanations are provided for every advanced problem.

■ Basic Problems

· Each unit provides basic problems, 3-step hints, and step-by-step solutions. · Questions are graded immediately, and you can re-solve incorrect problems.

■ Analysis Report and Weakness Overcoming Sets

· Identify your weak areas at a glance using correct answer rates by unit and question type.

· Select weak question types to create a set of 5 questions, and receive detailed explanations for each question.

· Sets can be printed as 2-column test papers.

■ Asking Questions to the AI ​​Tutor

· Ask about a problem you don't know via text or photo, and the AI ​​will explain the step-by-step solution through conversation.

· If necessary, it will explain by drawing tables and graphs.

· Solution Diagnosis: Upload a screenshot of your solution, and it will identify where you first got it wrong and the types of mistakes you made.

· You can review your questions by unit in "My History" (photo questions are not saved).

■ Drawing on the Screen

· You can solve problems by writing directly on the lesson and questions using a pen or highlighter.

■ User Guide

· Designed for landscape tablet screens, and can also be used landscape on mobile phones.

· You can try the first sub-unit of your registered grade for free. · The Basic and Advanced levels are available with a lifetime pass, while the Weakness Overcoming Set and AI Tutor are accessed using points. Receive welcome points upon new sign-up.

· No advertisements.

Inquiries: readfit78@gmail.com · 031-433-1511

Operated by: Hanbaek
From elementary, middle, and high school math concepts to advanced problems, and even AI tutor questions and solution diagnoses.
Updated on
Oct 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info and App activity
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

1.0.1 업데이트
• 심화편: 단원마다 세부·심화 개념과 심화 문제(상세 해설) 추가
• AI 튜터 질문하기: 글이나 사진으로 묻고, 표·그래프로 설명을 받아요
• 풀이 진단: 내 풀이를 찍어 올리면 처음 틀린 줄과 실수 종류를 알려 줘요
• 약점 극복 세트: 약한 유형만 골라 5문제, 시험지로 인쇄
• 내 기록: 질문과 세트를 단원별로 모아 보기
• 개념 수업 음성을 더 자연스럽게 다듬었어요
• 앱 안 구매(구글 플레이 결제) 지원
Content rating
Everyone
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App support

About the developer
박정빈
pbin528@gmail.com
도곡로78길 22 강남구, 서울특별시 06279 South Korea