Comparison

かけ算訓練 vs 暗算Blitz

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

かけ算訓練

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資格試験、お買い物、仕事、現代人の日常生活には様々な「計算」が求められます。インド式かけ算を訓練して暗算を一瞬にして導き出せればスマホを取り出すより早く答えが分かります。 SPI、玉手箱、TG-WEBなどの採用試験対策にも。 --個人のやり方に合わせた計算方式インド式かけ算の最後の工程である加算を筆算に倣って一の位から行うか、暗算を想定して最上位から行うか選択出来ます。 --より暗算に近い環境で訓練途中の計算結果を隠すことが出来るためより実践的に訓練出来ます。

About

暗算Blitz

Features

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99×99までのかけ算でらくらく計算できるパターンを網羅。苦手なパターンだけを徹底練習できます。問題ごとに解法が参照できるので「これどうやるんだったっけ？」という疑問もすぐに解決。

Screenshots

かけ算訓練3 screens

暗算Blitz3 screens

Verdict

The call

The clearest difference is in-app purchases: かけ算訓練 at none against 暗算Blitz's 1. かけ算訓練 also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). 暗算Blitz's advantage is update cadence (daily vs every 9 days). On price 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. 暗算Blitz sells 1 one-off in-app purchase. かけ算訓練 asks for nothing beyond the download.

UpkeepUpdate frequency

かけ算訓練 ships an update every 9 days, 暗算Blitz daily. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 2 level

かけ算訓練 versus 暗算Blitz: the parameters behind the verdict, then further details
Parameter	かけ算訓練	暗算Blitz
Price	Free	Free
Update frequency	Every 9 days	Daily — better
Ads	No — better	Yes
In-app purchases	No — better	Yes
Devices	iPhone, iPod	iPhone, iPad
Requires iOS	13.0 — better	17.6
Further details — not scored
Size	14 MB	54 MB
Age rating	4+	4+
Developer	Shotaro Maruyama	Toshihide KAWAI