Comparison

AnzanDojo 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

AnzanDojo

Features
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This game was made for my son who does not study very hard but likes playing games with iPhone. This application is to help players strengthen their abilities to do mental calculations with enjoyment. Players are to do math in their heads until they answer correctly 10 consecutive questions and they compete for the time spent to complete calculations. Good for elementary school pupils. Helpful for grown-ups who always use calculators and/or spreadsheets for mental exercises also. Three levels available - Elementary, Intermediate and Advanced. Scores are ranked by the time spent and automatically recorded, then top 10 scores are displayed. Furthemore, your score can be posted to your Twitter by Twitter linkage function. Your score is not automatically posted, so you can post only good scores. This application avoids very easy questions such as 10+3. You can pass up to 3 times per game so you will not drop by the wayside.

About

暗算Blitz

Features
Read full description

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

AnzanDojo4 screens
暗算Blitz3 screens

Verdict

The call

The clearest difference is in-app purchases: AnzanDojo at none against 暗算Blitz's 1. AnzanDojo also leads on ads (none vs shown) and iOS requirement (9.0 vs 17.6). 暗算Blitz's advantage is update cadence (daily vs every 3 weeks). 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. AnzanDojo asks for nothing beyond the download.

UpkeepUpdate frequency

AnzanDojo ships an update every 3 weeks, 暗算Blitz daily. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 2 level
AnzanDojo versus 暗算Blitz: the parameters behind the verdict, then further details
ParameterAnzanDojo暗算Blitz
PriceFreeFree
Update frequencyEvery 3 weeksDaily — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better17.6
Further details — not scored
Size4 MB54 MB
Age rating4+4+
DeveloperZOOMO Inc.Toshihide KAWAI

In-app purchases

None

AnzanDojo

No in-app purchases

1 purchases

暗算Blitz

One-time1
  • プレミアム・ユーザー$14.99

Questions

Is AnzanDojo free?
AnzanDojo is free to download, with no in-app purchases.
Is 暗算Blitz free?
暗算Blitz is free to download, with in-app purchases available.
Do AnzanDojo or 暗算Blitz have ads?
暗算Blitz shows ads; AnzanDojo does not.
Which is updated more often, AnzanDojo or 暗算Blitz?
AnzanDojo ships an update every 3 weeks, and 暗算Blitz daily. Most recently, AnzanDojo was updated on October 9, 2026 and 暗算Blitz on October 3, 2026.

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