Comparison

暗算Blitz vs Kukuku! 3

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

Head to head
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。

About

Kukuku! 3

Features
Read full description

▼ Title Kukuku – Next-Level Multiplication Training ▼ Description For those who find basic multiplication too easy. “Kukuku” is a serious mental math training app designed to strengthen your multiplication skills. You’ve already mastered basic 1-digit × 1-digit multiplication. But when it comes to 2-digit × 2-digit or 3-digit × 3-digit, do you suddenly lose confidence? This app is built for those aiming to go one step further—a simple yet powerful tool for advanced mental math training. ▼ Key Features ① Fully Customizable Difficulty The biggest strength of Kukuku is its flexible difficulty settings. From simple 1-digit × 1-digit problems to 2-digit × 3-digit, and even three-number multiplications like 1-digit × 2-digit × 3-digit—you can mix and match freely. Start easy and gradually increase the level at your own pace. You can also focus on specific combinations you find challenging. ② Train Both Speed and Accuracy Strong mental math requires both speed and accuracy. Choose a time limit per question: 10 seconds, 5 seconds, or no limit. A progress bar counts down in real time, turning red in the last 3 seconds to increase tension. Practice accuracy without time pressure, then challenge yourself with speed—this cycle steadily improves your skills. ③ 10-Question Mode & Endless Mode Choose how you train. In “10-Question Mode,” your results are summarized every 10 questions—perfect for quick practice sessions. In “Endless Mode,” problems continue without interruption, allowing deep focus and extended repetition. Great for pre-exam training or daily routines. ④ Auto-Advance for Smooth Practice Enable “Auto-Advance” to move to the next question instantly after entering the correct answer. No need to press a confirm button—just focus on solving problems. This smooth rhythm helps your brain stay in calculation mode. ▼ Learning Support Features ① Calendar Tracking The calendar view shows your daily practice at a glance. See how many problems you solved each day and track your consistency. It helps build a strong learning habit by visualizing your progress. ② Performance Analytics View your overall accuracy with a clear donut chart. Results are also broken down by digit combinations, making it easy to identify weak areas like “2-digit × 3-digit.” Use these insights to train more efficiently. ▼ Recommended For Students and professionals who want faster mental math Those confident with basic multiplication but struggling with larger numbers Anyone looking to strengthen math fundamentals People who enjoy daily brain training Parents who want to improve their child’s calculation skills in a fun way ▼ Data Storage All data is securely stored on your device. Your learning history is never lost, even if you close the app. You can reset all data anytime from the settings. Take your skills beyond basic multiplication. Kukuku will push your mental math to the next level. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aquapeakstudio.com/privacy-policy

Screenshots

暗算Blitz3 screens
Kukuku! 34 screens

Verdict

The call

The clearest difference is in-app purchases: Kukuku! 3 at none against 暗算Blitz's 1. Kukuku! 3 also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.6). 暗算Blitz's advantage is update cadence (daily vs fortnightly). 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. Kukuku! 3 asks for nothing beyond the download.

UpkeepUpdate frequency

暗算Blitz ships an update daily, Kukuku! 3 fortnightly. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 2 level
暗算Blitz versus Kukuku! 3: the parameters behind the verdict, then further details
Parameter暗算BlitzKukuku! 3
PriceFreeFree
Update frequencyDaily — betterFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size54 MB41 MB
Age rating4+4+
DeveloperToshihide KAWAIKeita Ide

In-app purchases

1 purchases

暗算Blitz

One-time1
  • プレミアム・ユーザー$14.99
None

Kukuku! 3

No in-app purchases

Questions

Is 暗算Blitz free?
暗算Blitz is free to download, with in-app purchases available.
Is Kukuku! 3 free?
Kukuku! 3 is free to download, with no in-app purchases.
Do 暗算Blitz or Kukuku! 3 have ads?
暗算Blitz shows ads; Kukuku! 3 does not.
Which is updated more often, 暗算Blitz or Kukuku! 3?
暗算Blitz ships an update daily, and Kukuku! 3 fortnightly. Most recently, 暗算Blitz was updated on October 20, 2026 and Kukuku! 3 on October 25, 2026.

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