Mental Math Kingdom is an education app developed by Hiroki Sekimoto.
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App Information
Mental Math Kingdom is FREE to download. The download size is 13.07 MB. The latest version available is 1.0.1. The last update was on July 9, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on App Store July 2026.
Description
■ No ads. One-time purchase. No sign-up needed. A mental math trainer you can hand to your kids with confidence. Your learning records stay on your device, and no account is needed.
■ Your journey on the Math Road From grade-1 addition to times tables, 2-digit multiplication, and adult-level challenges — climb Levels 1 to 20, collecting stars one step at a time. - Pick your grade, or take a 1-minute placement test to find your starting point - Always start where you can win, and level up without frustration - Grade 1 (addition), Grade 2 (times tables), Grade 3 (division), Grade 4+ (2-digit multiplication), plus brain training for teens and adults. The whole family can use it.
■ Master mental multiplication Doing "23 x 47" in your head is a real skill — and the top of the Math Road is where you earn it. - Step-by-Step: break 2-digit multiplication into 3 steps and learn how it works - Times-Table Ladder: unlock stage by stage and collect stars - Weak-Spot AI: analyzes your mistakes and targets what you struggle with
■ Gamification that keeps you coming back - Earn XP and rank up from "Rookie" all the way to "Mental Math King" - Daily streaks, combos, and a badge collection - Daily Challenge: the same 10 questions for everyone, every day - Game Center leaderboards (daily / all-time / time attack / weekly league)
■ Modes for every mood Practice / Step-by-Step / Daily Challenge / Time Attack / Survival / Review / Weak-Spot AI
■ See your growth Accuracy and speed trend charts, per-topic stats, and a parent report. Progress you can see keeps motivation high.
■ Mental Math Kingdom Pro (one-time purchase — buy once, use forever) Unlocks Survival, Weak-Spot Review, unlimited Time Attack, detailed stat charts, and all themes. It is not a subscription.
For ages 6 to adult — kids, students, and grown-ups keeping their minds sharp.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.