シンプルFLASH暗算 vs Mental Math Kingdom

『シンプルFLASH暗算』は、画面に一瞬ずつ表示される数字を合計して答えるトレーニングアプリです。暗算力・注意力・ワーキングメモリの向上に役立ちます。UIはスマホ縦型に最適化。学習や脳トレ、受験対策にも。 ◆ 特長 ・一桁/二桁/三桁の難易度に対応 ・ステージモードで検定試験対策 ・表示口数（最大10口）／表示時間／消灯時間を自由に調整 ・効果音ON/OFF、ダーク/ライトのテーマ切替 ・ヒント表示で直前の出題を確認可能 ・オフラインでサクサク動作、すぐ再挑戦できるシンプル設計 ◆ 使い方 1. 「スタート」をタップして数字を順番に確認 2. 表示が終わったら合計を入力して「判定」 3. 正解・不正解が大きく表示され、ヒントで出題の内訳も確認できます ◆ こんな人におすすめ ・暗算を速く・正確にしたい ・通勤通学のスキマ時間に脳トレしたい ・受験・資格の計算力を底上げしたい ◆ プライバシー ・アカウント登録不要、個人情報の収集はありません ・設定は端末内に保存されます

■ 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.