Comparison

drillio vs フラッシュ暗算練習

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

Head to head
About

drillio

Enhance your calculation abilities with engaging mental math exercises. This app offers customizable practice cards for addition, subtraction, multiplication, and division, along with progress tracking to keep you motivated.

Highlights
  • Mental math cards for calculation techniques
  • Customizable practice modes
  • Progress tracking via stats tab
  • Engaging brain-boosting exercises
  • Covers addition, subtraction, multiplication, division
Features
Read full description

drillio helps you build real mental math skills with soroban-style flash anzan and arithmetic drills. 41 flash anzan levels (from beginner to 20th dan) and 278 arithmetic lessons. All core learning is free. FLASH ANZAN - 41 levels: beginner, 20th kyu to 1st kyu, then 1st to 20th dan - Master a level by answering correctly 10 times, and earn a certificate - Frame-accurate display timing, so even the fastest flashes are shown precisely - Custom mode: choose your own digits, number of terms and display time - Your fastest answer is saved automatically ARITHMETIC DRILLS - 278 lessons in addition, subtraction, multiplication and division, from basic to advanced - 2-digit x 2-digit, 3-digit problems, fill-in-the-blank problems and more - Earn more points the faster you answer, and see your progress for each lesson CHALLENGES - Time Attack: solve as many problems as you can before time runs out - Oni Calc: answer the problem from N steps back, training memory and calculation together KEEP GOING - Daily streaks, study time and points - Reminders before your streak ends drillio PRO (optional) - No ads - Dark mode - Streak recovery - Priority support Subscriptions renew automatically unless cancelled. Terms of Use: https://gist.github.com/aviciida/c635fb7d61c24c8df4f39506902f3ca6 Privacy Policy: https://gist.github.com/aviciida/f9dd03234fa3de0b23aa536073abcca4

About

フラッシュ暗算練習

Features
Read full description

シンプルなデザインとオリジナル設定でフラッシュ暗算のレベルアップ! 【主な特徴】 ・シンプルな操作性 シンプルなデザインにより、どなたでも簡単に利用できます。 ・カスタマイズ 問題の種類や数、表示時間をカスタマイズできます。 ・復習 同じ問題にもう一度チャレンジできます。 【こんな方におすすめ】 ・余計な機能はいらない! ・ただただフラッシュ暗算の練習がしたい! 「Flash計算練習」で、今日からフラッシュ暗算のレベルアップ!

Screenshots

drillio4 screens
フラッシュ暗算練習4 screens

Verdict

The call

The clearest difference is review sentiment: drillio at 90% against フラッシュ暗算練習's 50%. フラッシュ暗算練習's advantage is in-app purchases (none vs 3) and iOS requirement (13.0 vs 16.0). On price, update cadence, 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. drillio sells 3 in-app purchases, starting at $1.99 per month. フラッシュ暗算練習 asks for nothing beyond the download.

UpkeepUpdate frequency

drillio ships an update every 2 weeks, フラッシュ暗算練習 every 9 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
drillio versus フラッシュ暗算練習: the parameters behind the verdict, then further details
Parameterdrillioフラッシュ暗算練習
PriceFreeFree
Rating4.5 (8 ratings) — better—
Positive reviews90.0% of reviews — better50.0% of reviews
Number of ratings8 — better—
Update frequencyEvery 2 weeksEvery 9 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size33 MB28 MB
Age rating4+4+
DeveloperRyo IidaKatsuyuki Hayashi

Customer experience

drillio

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews20 reviews
Positive90.0%
Neutral0.0%
Negative10.0%

フラッシュ暗算練習

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

3 purchases

drillio

Subscriptions3
  • drillio PRO Monthly$1.991 Month
  • drillio PRO campaign1 Year trial$14.991 Year
  • drillio PRO Annual$14.991 Year
None

フラッシュ暗算練習

No in-app purchases

Questions

Is drillio free?
drillio is free to download, with in-app purchases available.
Is フラッシュ暗算練習 free?
フラッシュ暗算練習 is free to download, with no in-app purchases.
Do drillio or フラッシュ暗算練習 have ads?
Both drillio and フラッシュ暗算練習 show ads.
Which is updated more often, drillio or フラッシュ暗算練習?
drillio ships an update every 2 weeks, and フラッシュ暗算練習 every 9 days. Most recently, drillio was updated on November 3, 2026 and フラッシュ暗算練習 on November 4, 2026.

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