Comparison

AnzanDojo vs Flash mental calculation

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

Head to head
About

AnzanDojo

Features
Read full description

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

Flash mental calculation

Practice mental arithmetic with this educational app. Review your calculation process, and easily re-challenge mistaken problems from your past logs. Upgrade to save more calculation history.

Highlights
  • Practice flash mental arithmetic
  • Review calculation process
  • Rechallenge mistaken problems
  • Save past calculation logs
  • Log history saved after purchase
Features
Read full description

This app that you can practice flash mental arithmetic. You can review the calculation process by tapping the confirmation button after calculation. In addition, since the question which was made is saved in the past log, you can rechallenge the mistaken problem later. The past logs are saved for 10 questions before purchase, and 150 questions can be saved after purchase. ■ Past log Challenge mode, practice mode questions and results are automatically saved. Touch the challenge button to re-challenge the question. The past logs are saved for 10 questions before purchase and 150 questions are stored after purchase.

Screenshots

AnzanDojo4 screens
Flash mental calculation3 screens

Verdict

The call

The clearest difference is in-app purchases: AnzanDojo at none against Flash mental calculation's 1. AnzanDojo also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). 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. Flash mental calculation sells 1 one-off in-app purchase. AnzanDojo asks for nothing beyond the download.

UpkeepUpdate frequency

AnzanDojo ships an update every 3 weeks, Flash mental calculation every 5 months. The most recent releases landed on December 5, 2025 and August 19, 2026 respectively.

Scorecard4 real differences · 6 level
AnzanDojo versus Flash mental calculation: the parameters behind the verdict, then further details
ParameterAnzanDojoFlash mental calculation
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better15.6
Further details — not scored
Size4 MB11 MB
Age rating4+4+
DeveloperZOOMO Inc.kenji kiuchi

In-app purchases

None

AnzanDojo

No in-app purchases

1 purchases

Flash mental calculation

One-time1
  • Remove AD & All function Release.$9.99

Questions

Is AnzanDojo free?
AnzanDojo is free to download, with no in-app purchases.
Is Flash mental calculation free?
Flash mental calculation is free to download, with in-app purchases available.
Do AnzanDojo or Flash mental calculation have ads?
Flash mental calculation shows ads; AnzanDojo does not.
Which is updated more often, AnzanDojo or Flash mental calculation?
AnzanDojo ships an update every 3 weeks, and Flash mental calculation every 5 months. Most recently, AnzanDojo was updated on December 5, 2025 and Flash mental calculation on August 19, 2026.

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