Mental Abacus Book 2 vs Flash Mental Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mental Abacus Book 2
This app provides a comprehensive guide to mastering multiplication and division using an abacus. It features detailed explanations, diagrams, and a virtual abacus for hands-on practice. An interactive tool demonstrates calculation steps for both hands.
- Advanced abacus multiplication and division concepts
- Detailed explanations with diagrams and examples
- Interactive Abaculator for step-by-step calculations
- Virtual abacus for hands-on practice
- Two hands fingering method for right brain development
- Multiplicative pithy formulas for fast multiplication
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Mental Abacus Book 2 focuses on advanced abacus topics, and it is a complete learning package on multiplication and division. Every concept and technique involved is explained thoroughly with plenty of examples and various diagrams. Book 1 and Book 2, together with the powerful demonstration kit “Abaculator”, comprise a comprehensive guide for abacus self-study. As in Mental Abacus, Mental Abacus Book 2 is divided into two sections, namely Tutorial and Abaculator. ABACUS TUTORIAL Interfaces are organized in a simple and easy way, absolutely the most appropriate learning material for novice to proceed. Advanced concepts, theories and techniques are explained not only by plain words, but also with massive illustrations. Numerous examples with demonstration further strengthen the study effectiveness. ABACULATOR A great tool that demonstrates the steps for BOTH hands abacus mental arithmetic. Just enter any multiplication or division equation, Abaculator will show you every step with detailed description and explanation. You can pause and continue whenever you need, change your desired settings for quotient estimation method or calculation method, or even switch to show set of steps for other number or equation in the middle of the demonstration. And More...VIRTUAL ABACUS Built-in virtual abacus enables you to follow the lessons and practice the Two Hands Fingering Method on the abacus at the same time. You can try to solve the examples on the virtual abacus by yourself and check with the demonstration steps provided on the page as well. FEATURES SUMMARY: - Decimal to Multi-Digit Multiplication - Multiplicative Pithy Formula for Fast Multiplication - Full Analysis and Details on Quotient Estimate Methods - Dealing with all kinds of Division Revisions - Specific multiplication and division settings in Abaculator explains every step in detail - Two hands fingering method fosters right brain functions - Virtual Abacus allows you to practise along everywhere - Assists in achieving the ultimate aim of abacus training, transforming visualized beads move on imaginary abacus and getting rid of the substantial abacus
Flash Mental Math
Practice mental arithmetic with various difficulty levels and custom modes. This app serves as a brain training tool to enhance calculation skills.
- Mental arithmetic practice
- Easy, normal, and difficult modes
- Customizable modes
- Brain training
- Calculation skill improvement
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Flash mental arithmetic practice app In addition to the easy, normal, and difficult modes, there are also custom modes. It can also be a brain training to improve mental arithmetic
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Verdict
The clearest difference is price: Flash Mental Math at Free against Mental Abacus Book 2's $8.99. Flash Mental Math also leads on update cadence (every 3 months vs every 13 months) and ratings volume (19 vs 1). Mental Abacus Book 2's advantage is ads (none vs shown) and rating (5.0 vs 4.7). On 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
Flash Mental Math is free to download; Mental Abacus Book 2 costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mental Abacus Book 2 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Flash Mental Math has 19 ratings behind it against 1, so its average is the more settled of the two.
Mental Abacus Book 2 ships an update every 13 months, Flash Mental Math every 3 months. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.
| Parameter | Mental Abacus Book 2 | Flash Mental Math |
|---|---|---|
| Price | $8.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 4.7 (19 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 19 — better |
| Update frequency | Every 13 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 16 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Hamster Force Multimedia Ltd. | Ryouhei Azuma |
Customer experience
Mental Abacus Book 2
Flash Mental Math
In-app purchases
Mental Abacus Book 2
No in-app purchases
Flash Mental Math
No in-app purchases
Questions
Is Mental Abacus Book 2 free?
Is Flash Mental Math free?
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