Mental Math Speed Trainer 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.
Mental Math Speed Trainer
Sharpen your mental math skills with this engaging app focused on addition. Customize card numbers and timing intervals for a personalized learning experience. Track your progress with visually stimulating graphics, suitable for all ages.
- Customizable card numbers
- Adjustable timing intervals
- Focus on addition
- Progress tracking
- Engaging visuals
- User-friendly interface
Read full descriptionHide full description
■ What is flash anzan? Flash anzan is a "soroban-style" (Japanese abacus) way to do mental math: numbers flash on the screen one after another, and you add them up in your head. No abacus experience needed — start at the beginner level and work your way up. ■ Who it's for • Kids and students who want faster arithmetic • Soroban / abacus learners practicing for tests • Adults who want a quick daily brain workout • Anyone looking for a habit they can actually keep ■ Certification-based ranks Question count, number of digits, and flash speed are designed around flash anzan certification standards. Begin at the entry grades, pass a promotion exam, and your rank goes up — from your first dan all the way to 20th dan. Your skill is shown clearly as a real rank. ■ See your progress • High score and daily scores tracked in charts • Switch between weekly, monthly, and all-time trends • A practice calendar makes your run visible ■ Stay motivated • Online ranking: compete with players worldwide, by week or all-time • Daily missions: see today's goals at a glance • Reminders: a gentle nudge at your practice time ■ Make it yours • "Practice" mode: pick your own level (digits, count, speed) with no pressure • "Challenge" mode: race the clock and test your limit • Toggle read-aloud and sound effects A few minutes of flash anzan a day turns calculation practice into a habit. Why not start with one round today? ■ Privacy Policy & Terms of Use Privacy Policy: https://takayukimeilyn.github.io/menuplanner/privacy-policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
フラッシュ暗算練習
Read full descriptionHide 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
Verdict
The clearest difference is in-app purchases: フラッシュ暗算練習 at none against Mental Math Speed Trainer's 3. フラッシュ暗算練習 also leads on review sentiment (50% vs 18%) and device support (3 vs 1). On price, update cadence and ads 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. Mental Math Speed Trainer sells 3 in-app purchases, starting at $2.99 per month. フラッシュ暗算練習 asks for nothing beyond the download.
Mental Math Speed Trainer ships an update weekly, フラッシュ暗算練習 every 9 days. The most recent releases landed on September 22, 2026 and August 15, 2026 respectively.
| Parameter | Mental Math Speed Trainer | フラッシュ暗算練習 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) — better | — |
| Positive reviews | 17.6% of reviews | 50.0% of reviews — better |
| Number of ratings | 4 — better | — |
| Update frequency | Weekly — better | Every 9 days |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 56 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | TAKAYUKI HASHIMOTO | Katsuyuki Hayashi |
Customer experience
Mental Math Speed Trainer
フラッシュ暗算練習
In-app purchases
Mental Math Speed Trainer
- 月間プラン7 Days trial$2.991 Month
- 年間プラン7 Days trial$19.991 Year
- Lifetime Premium$39.99
フラッシュ暗算練習
No in-app purchases





