毎日100マス vs MathGrid 100
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
毎日100マス
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1日1回、脳トレ習慣。基礎計算力と集中力を向上させましょう。 「100マス計算」は、脳の活性化や計算力の向上に効果的と言われています。当アプリでは、楽しみながら継続できる環境を提供します。 【主な機能】 多様な計算練習: 10x10マス計算に加え、短時間で集中できる5x5マス計算も可能。 進捗の可視化: 毎日のタイムを自動記録。グラフで成長を実感できます。 全国ランキング: 他のユーザーとタイムを競えます。年代別フィルターで同世代の強者を探しましょう。 家族で共有: 1つの端末に複数ユーザーを登録可能。家族みんなで記録を共有できます。 直感的な操作: 数字を入力するだけのシンプルな設計。間違えはその場で気づけるため、着実に計算力が身につきます。 【こんな方におすすめ】 毎日コツコツ脳トレをしたい方 お子様の算数力を鍛えたい方 集中力を高めたい方 今すぐダウンロードして、今日の計算トレーニングを始めましょう!
MathGrid 100
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MathGrid 100 — Photo-graded math drills for daily mental math practice. Known in Japan as "Hyakumasu Keisan" (百マス計算 / 100-square calculation), this classic drill is a proven method for building mental math fluency, recommended by Japanese educators such as Hideo Kageyama. MathGrid 100 brings this method to your iPhone with AI-powered photo grading: just snap a picture of the completed worksheet and get an instant score. 【Features】 * Camera-based instant grading — no typing required * Supports addition and multiplication * 9×9 (multiplication) and 10×10 grids * Review and manually edit each cell if needed * Saves up to 20 sessions in history * Points, levels, and badges to keep kids motivated * Daily streak tracking * Up to 4 separate child profiles with individual progress 【Great for】 * Parents tired of manually grading drill sheets * Tracking your child's daily practice * Gamifying repetitive practice to keep kids engaged * Supplementing Kumon, abacus class, or other math curricula ※ Internet connection required (handwriting recognition runs in the cloud). ※ This app shows a persistent banner ad and an interstitial ad after every few gradings.
Screenshots
Verdict
The clearest difference is update cadence: MathGrid 100 at every 3 weeks against 毎日100マス's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
毎日100マス ships an update every 8 months, MathGrid 100 every 3 weeks. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.
| Parameter | 毎日100マス | MathGrid 100 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 8 months | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 67 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Ben Walker | Hiroyuki Ishikawa |
In-app purchases
毎日100マス
No in-app purchases
MathGrid 100
No in-app purchases









