Mindmath vs Voice Math

Sharpen your mental math in five minutes a day. Mindmath is a fast, structured trainer for everyday arithmetic. Each session has five focused one-minute rounds: addition, subtraction, multiplication, percentages, and a final mixed challenge; so you train every skill, every day. The difficulty adapts to you: answer correctly and it pushes you harder; slip and it eases back, keeping every round at the edge of your ability. After each session you get a score based on accuracy and difficulty, and your history is saved on your device so you can watch yourself improve over time. No accounts. No ads. Fully offline. Just focused practice built for speed. FEATURES - Five timed one-minute rounds: add, subtract, multiply, percentages, mixed - Adaptive difficulty that tracks your performance - A score that rewards both accuracy and difficulty - Local progress history: track your trend or clear it anytime - Fast, distraction-free interface built for rhythm - Fully offline - No ads Whether it's for work, school, or staying sharp, MindMath gives you a structured way to practice mental math every day.

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.