MathGrid 100 vs 100ます計算ノート
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
100ます計算ノート
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100ます計算ノートは、楽しく100マス計算に取り組めるアプリです。 ■ 3つの入力モード ・音声 — 答えを声で入力 ・手書き — 指で数字を書いて入力 ・テンキー — タップで入力 ■ 問題数は3段階 10マス・50マス・100マスから選べます。それぞれ2分を目指してステップアップしましょう。 ■ 記録と習慣化 タイムを散布図で振り返り、連続日数で毎日の習慣をサポートします。
Screenshots
Verdict
The clearest difference is in-app purchases: MathGrid 100 at none against 100ます計算ノート's 1. MathGrid 100 also leads on iOS requirement (15.1 vs 18.0). 100ます計算ノート's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads 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. 100ます計算ノート sells 1 one-off in-app purchase. MathGrid 100 asks for nothing beyond the download.
MathGrid 100 ships an update every 3 weeks, 100ます計算ノート every 6 days. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.
| Parameter | MathGrid 100 | 100ます計算ノート |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 40 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroyuki Ishikawa | Yuki Taniguchi |
In-app purchases
MathGrid 100
No in-app purchases
100ます計算ノート
- 広告を削除する$2.99
Questions
Is MathGrid 100 free?
Is 100ます計算ノート free?
Do MathGrid 100 or 100ます計算ノート have ads?
Which is updated more often, MathGrid 100 or 100ます計算ノート?
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