Flash mental calculation vs そろばん学習ドリル Ext
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Practice flash mental arithmetic
- Review calculation process
- Rechallenge mistaken problems
- Save past calculation logs
- Log history saved after purchase
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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.
そろばん学習ドリル Ext
This app offers four courses to help beginners learn abacus calculation. It includes exercises for placing numbers, simple addition, addition of ten numbers, and auditory addition. Progress is tracked, and difficulty increases with proficiency.
- Placing numbers on the abacus
- Two-digit addition practice
- Addition of ten numbers
- Auditory addition exercises
- Progress tracking
- Adaptive difficulty levels
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初めてそろばんを学習するためのドリルです。 コースとしては次の４コースになります。 １．置く これはそろばんに数字を置く練習をします。 ２．計算 これは２つの数字の足し算を行います。 ３．見取 これは１０の数字の足し算を行います。 ４．聞取 これは１０の数字を音声で読み上げますので、それを聞いて足し算します。 各コースに学習の成果が記録され、熟練度により難易度が上がります。
Screenshots
Verdict
The clearest difference is review sentiment: Flash mental calculation at 100% against そろばん学習ドリル Ext's 0%. そろばん学習ドリル Ext's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence 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
Both are free to download. Flash mental calculation sells 1 one-off in-app purchase. そろばん学習ドリル Ext asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on August 19, 2026 and September 6, 2026 respectively.
| Parameter | Flash mental calculation | そろばん学習ドリル Ext |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 months | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | kenji kiuchi | ryo itou |
Customer experience
Flash mental calculation
そろばん学習ドリル Ext
In-app purchases
Flash mental calculation
- Remove AD & All function Release.$9.99
そろばん学習ドリル Ext
No in-app purchases
Questions
Is Flash mental calculation free?
Is そろばん学習ドリル Ext free?
Do Flash mental calculation or そろばん学習ドリル Ext have ads?
Which is updated more often, Flash mental calculation or そろばん学習ドリル Ext?
Other comparisons
