Mental Math vs 速算トレイン
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mental Math
Train your calculation skills with this app by solving math problems against the clock. Customize the time limit and number of questions for a personalized challenge. Review your results to track progress and improve your math abilities.
- Solve math problems against a time limit
- Customize time limit and number of problems
- Review calculation results
- Simple and comfortable user interface
- Gaming experience for spare time
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This is a calculation training app where you can solve math problems within a predetermined time limit. You can customize the time limit and the number of problems according to your preferences. Once the problems are completed, the calculation results are displayed, and you can make use of them in the future. The problem interface has been designed to be as simple as possible, ensuring comfortable usability. With a short time limit, you can play and solve problems in your spare time, enjoying a gaming experience. If you have any requests or suggestions, you can submit them through the app. Please feel free to actively utilize it if there are any features you desire.
速算トレイン
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人は人生でどれだけの計算をするのでしょうか？計算が速い、間違いが少ないというのは、地味ではあるけれど他のどんな能力にも劣らないくらい生きることを楽にします。このアプリはインド式計算法をはじめとした覚えにくく忘れやすいさまざまな速算法を身につけ忘れずにとどめておく事を補助します。
Screenshots
Verdict
The clearest difference is update cadence: Mental Math at every 6 days against 速算トレイン's every 2 months. 速算トレイン's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Mental Math ships an update every 6 days, 速算トレイン every 2 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | Mental Math | 速算トレイン |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 days — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 67 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Yudai Kitano | Yosuke Ebina |
In-app purchases
Mental Math
No in-app purchases
速算トレイン
No in-app purchases
