# Voice Math: 10 Questions

> Math answers by voice

Canonical page: [https://chrome-stats.com/d/id6757856231](https://chrome-stats.com/d/id6757856231)

## Overview

- **ID:** `id6757856231`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Hideaki Yasukawa
- **Category:** Education
- **Version:** 1.0.3
- **Last updated:** 2026-08-01
- **First published:** 2026-01-18
- **Size:** 20 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/voice-math-10-questions/id6757856231)
- **Privacy policy:** [https://voyager-yk.com/apps/voicecalc/privacy-policy/](https://voyager-yk.com/apps/voicecalc/privacy-policy/)

## Description

Voice-answer math: times tables, add & subtract in a 10-question time attack. Zero ads, fully offline. Master Mode adds tables 4–12, division & a parent report.

Say the answer out loud — that's the whole drill. “Koede Keisan” is a voice-answer math app for kids. No pencil, no paper. In a 5–7 minute, 10-question time attack, children practice times tables, addition and subtraction with great rhythm.

■ A new way to practice math — by voice
Read the problem on screen and just say the answer. On-device speech recognition listens and a gentle, forgiving check captures correct answers. If it can't hear clearly, switch instantly to a calculator-style tap pad.

■ Free
• Times tables 1–3
• Addition (including carrying)
• Subtraction (including borrowing)
• Time attack and best records
Plenty for memorizing the times tables and practicing carry/borrow.

■ Master Mode (one-time purchase, no subscription)
For families who want more, a single purchase unlocks:
• Times tables 4–12 and division
• Per-table “Progress” (mastery shown as stars)
• Automatic weak-spot detection from mistakes and answer time, and adaptive practice that steers the next questions toward weak spots
• Parent report (days played, day streak, accuracy per table, recent trend)
• Sibling profiles (separate records per child)
Purchasing is only inside the parent PIN gate, so kids can't buy by accident. It's a one-time purchase (not a subscription) and supports Family Sharing.

■ For parents — designed for peace of mind
• Zero ads (no banners, no full-screen)
• Works fully offline; learning data and audio are never sent (processed on device)
• Nothing is stored on a server
• The purchase flow is hidden from kids, inside the parent PIN
A kind, encouraging tone — a healthy learning experience you can confidently hand to your child.

■ Great for
• Grades 2–3 (memorizing/cementing times tables, carry & borrow)
• Grade 1 addition and subtraction
• Early grade 4 division (Master Mode)

Saying it out loud makes it stick. Five minutes a day builds fast, accurate calculation.

## Rankings

- #1,188,254 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6757856231)