フラッシュ暗算検定模試（協会） vs Flash mental calculation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
フラッシュ暗算検定模試（協会）
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日本フラッシュ暗算協会公認の検定模試アプリです。 是非多くの方に、本物のフラッシュ暗算検定を受験していただきたいと思います。 まずは検定模試アプリで腕試し！ 日本フラッシュ暗算協会の検定試験に完全準拠していますので本アプリで合格するまで十分練習すれば実際の検定試験での合格率も大幅にアップ！ 実際の検定試験に沿った効率的な練習を行えます。
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.
Screenshots
Verdict
The clearest difference is review sentiment: Flash mental calculation at 100% against フラッシュ暗算検定模試（協会）'s 0%. Flash mental calculation also leads on price (Free vs $3.99) and rating (5.0 vs 3.0). フラッシュ暗算検定模試（協会）'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On ratings volume 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
Flash mental calculation is free to download; フラッシュ暗算検定模試（協会） costs $3.99 up front. Flash mental calculation sells 1 one-off in-app purchase. フラッシュ暗算検定模試（協会） asks for nothing beyond the download.
Flash mental calculation holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of フラッシュ暗算検定模試（協会）'s written reviews are positive against 100% of Flash mental calculation's.
フラッシュ暗算検定模試（協会） ships an update every 28 months, Flash mental calculation every 5 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | フラッシュ暗算検定模試（協会） | Flash mental calculation |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 3.0 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 2 |
| Update frequency | Every 28 months | Every 5 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 15 MB | 11 MB |
| Age rating | +4 | 4+ |
| Developer | Yuji Miyamoto | kenji kiuchi |
Customer experience
フラッシュ暗算検定模試（協会）
Flash mental calculation
In-app purchases
フラッシュ暗算検定模試（協会）
No in-app purchases
Flash mental calculation
- Remove AD & All function Release.$9.99
Questions
Is フラッシュ暗算検定模試（協会） free?
Is Flash mental calculation free?
Which has better reviews, フラッシュ暗算検定模試（協会） or Flash mental calculation?
Do フラッシュ暗算検定模試（協会） or Flash mental calculation have ads?
Which is updated more often, フラッシュ暗算検定模試（協会） or Flash mental calculation?
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