19×19 暗算脳トレ vs 日常計算
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
19×19 暗算脳トレ
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19×19 暗算脳トレは、11×11〜19×19の二桁掛け算を楽しくマスターできるトレーニングアプリです。 【特徴】 ・ステージ制トレーニング 段ごとに問題を出題。正解を重ねると習熟度が上がり、新しいステージが解放されます。 ・タイムアタックモード 60秒で何問解けるか挑戦!新記録を目指してスコアを伸ばしましょう。 ・二乗トレーニング 11×11, 12×12…19×19を順番に出題。二乗の答えを素早く覚えられます。 ・苦手克服モード 間違えやすい問題を重点的に出題。弱点を効率よく克服できます。 ・成長の記録 正答率・連続日数・平均回答時間をグラフで確認。毎日の進捗が一目でわかります。 【こんな方におすすめ】 ・暗算力を鍛えたい方 ・計算が速くなりたい学生 ・脳トレを習慣にしたい方 ・子どもの算数学習をサポートしたい保護者 毎日少しずつ続けることで、二桁掛け算がスラスラ解けるようになります!
日常計算
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Daily Calculation is an app that lets you practice calculations often used in everyday life, such as shopping, discounts, splitting bills, and time calculations, in a quiz format. With practical questions like “How much is it after a percentage discount?”, “What time should I leave to arrive on time?”, and “How much does each person pay?”, you can enjoy improving your calculation skills through situations close to real life. Features: ・Practice shopping, discounts, splitting bills, time calculations, and more ・Fast-paced quiz format ・Build a practical sense for calculations used in daily life ・Simple and easy-to-understand screens ・Practice during short breaks Recommended for anyone who is not confident with mental math or wants to calculate faster in everyday situations. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: 19×19 暗算脳トレ at none against 日常計算's 2. 19×19 暗算脳トレ also leads on update cadence (every 9 days vs every 3 weeks) and iOS requirement (13.0 vs 15.1). 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. 日常計算 sells 2 in-app purchases, starting at $1.99 per month. 19×19 暗算脳トレ asks for nothing beyond the download.
19×19 暗算脳トレ ships an update every 9 days, 日常計算 every 3 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | 19×19 暗算脳トレ | 日常計算 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days — better | Every 3 weeks |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 38 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Atsushi Isai | SYSTEM TAMAYA |
In-app purchases
19×19 暗算脳トレ
No in-app purchases
日常計算
- プレミアム月額プラン$1.991 Month
- 広告を削除$1.99









