Comparison

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.

Head to head
About

19×19 暗算脳トレ

Features
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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!

About

日常計算

Features
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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

19×19 暗算脳トレ3 screens
日常計算4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 3 level
19×19 暗算脳トレ versus 日常計算: the parameters behind the verdict, then further details
Parameter19×19 暗算脳トレ日常計算
PriceFreeFree
Update frequencyEvery 9 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size38 MB70 MB
Age rating4+4+
DeveloperAtsushi IsaiSYSTEM TAMAYA

In-app purchases

None

19×19 暗算脳トレ

No in-app purchases

2 purchases

日常計算

Subscriptions1
  • プレミアム月額プラン$1.991 Month
One-time1
  • 広告を削除$1.99

Questions

Is 19×19 暗算脳トレ free?
19×19 暗算脳トレ is free to download, with no in-app purchases.
Is 日常計算 free?
日常計算 is free to download, with in-app purchases available.
Do 19×19 暗算脳トレ or 日常計算 have ads?
Both 19×19 暗算脳トレ and 日常計算 show ads.
Which is updated more often, 19×19 暗算脳トレ or 日常計算?
19×19 暗算脳トレ ships an update every 9 days, and 日常計算 every 3 weeks. Most recently, 19×19 暗算脳トレ was updated on October 28, 2026 and 日常計算 on October 25, 2026.

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