# MathBoard: Mental Arithmetic

> Calculator, Steps & Practice

Canonical page: [https://chrome-stats.com/d/id6789140182](https://chrome-stats.com/d/id6789140182)

## Overview

- **ID:** `id6789140182`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** 雷 陈
- **Category:** Education
- **Version:** 1.0
- **Last updated:** 2026-07-23
- **First published:** 2026-07-22
- **Size:** 3.51 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/mathboard-mental-arithmetic/id6789140182)
- **Website:** [https://zelonai.com/app/mathboard](https://zelonai.com/app/mathboard)
- **Privacy policy:** [https://zelonai.com/app/mathboard/privacy-policy](https://zelonai.com/app/mathboard/privacy-policy)

## Description

Handwrite mental math on iPad — add, subtract, multiply, divide. Auto-graded with explanations, a step calculator, and printable PDF worksheets. No ads, offline.

MathBoard is a handwriting-first mental-math practice app. Generate arithmetic worksheets, solve each problem by hand on an iPad whiteboard, and get instant auto-grading, wrong-answer explanations, and printable PDFs.

Pick a ready-made set or build your own:
① Within-10 / within-20 / within-50 / within-100 addition and subtraction
② Two-digit addition and subtraction
③ Multiplication tables, division tables, and mixed × ÷
④ Compare numbers (greater than, less than, equal to)
⑤ Four operations mixed

Work each problem with Apple Pencil or a finger on a per-question whiteboard — line up column working, carry and borrow, draw it out. MathBoard grades instantly, tracks accuracy and time, and saves every wrong answer with the correct solution, your draft, and a step-by-step explanation.

A built-in process calculator lets you enter a two-digit addition or subtraction and see the answer with vertical working and stick-counting visuals — the same show-your-work approach, on demand.

Designed for families:
① Apple Pencil and finger handwriting on every problem
② Auto-grading with accuracy and timing stats
③ Wrong-answer book with explanation and your draft
④ One tap generates a similar set to practice weak spots
⑤ Printable PDF worksheets — student, answer-key, and explanation versions
⑥ Bilingual: English and 简体中文, switchable at runtime
⑦ Fully offline, no ads, no accounts

MathBoard is local-first: worksheets, attempts, wrong answers, and PencilKit drafts stay on the device. Nothing is uploaded.

Core practice is entirely free: all problem types, number ranges, and set sizes (including comparison and two-digit) are available without paying. MathBoard Pro unlocks PDF export, full step-by-step explanations with vertical and visual models, wrong-question drills, learning reports, and batch generation — choose a Monthly or Yearly subscription, or a one-time Lifetime purchase.

Contact: sectojoy@gmail.com

Terms of Service:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy:
https://zelonai.com/app/mathboard/privacy-policy

## Rankings

- #1,652,203 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6789140182)