Abacus Mental Math Training vs FractionAndProbability
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Abacus Mental Math Training
This app offers professional training and assessment for abacus mental calculation and flash calculation, adhering to international grading standards. It features challenge and custom modes to help users improve their math and speed calculation skills.
- Adheres to World Abacus Mental Calculation Federation standards
- Challenge Mode with 10 levels and 200 stages
- Custom Mode for Flash Calculation and Abacus practice
- Adjustable calculation parameters (number range, digits, time)
- Gradual difficulty progression
- Simulates exam conditions
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"Abacus Mental Calculation - Grade Assessment for Mental Math and Flash Anzan", a professional training and exam tool is a specialized application designed strictly in accordance with the "World Abacus Mental Calculation Federation Abacus Mental Calculation Grade Assessment Standard." It features professional grading, rich content, ease of use, and an educational and entertaining experience. It is an essential training and exam tool for mathematics enthusiasts and flash calculation enthusiasts. The application is divided into two main modes: Challenge Mode and Custom Mode. The Challenge Mode consists of 10 levels and 200 stages, corresponding to the proficiency and ability assessment standards of Abacus Mental Calculation from Level 10 to Level 1. The difficulty of each stage progresses gradually, and the exam stages of each major level strictly adhere to the question paper standards of the "Abacus Mental Calculation Grade Assessment Standard." This allows examinees and speed calculation enthusiasts to receive comprehensive Abacus Mental Calculation training and assess their own mental calculation skills. Level 5 of Abacus Mental Calculation corresponds to the corresponding level of the Computerized Accounting Certificate in the Certified Public Accountant examination, providing relevant individuals with ample practice opportunities. In the Abacus Mental Calculation examination and assessment standards, Levels 8-10 only involve addition and subtraction, while Levels 1-7 also include multiplication and division. The exam settings, difficulty, time limit, number of questions, and question types in this application fully comply with the corresponding exam standards. If students can successfully pass the corresponding level exam in this application, they can be considered to possess the equivalent qualification of Abacus Mental Calculation and can confidently participate in the grade assessment exam. The Custom Mode includes Flash Calculation and Abacus Mental Calculation functions. In Flash Calculation, users can select calculation methods, number range, number of digits, and time intervals. In Abacus Mental Calculation, users can customize calculation methods, number of questions, and time limit, thereby improving their mathematical and mental calculation skills through extensive and repetitive training. Our Abacus Mental Calculation and Flash Anzan application has a fresh and concise interface, natural and friendly interactions, and provides a user-friendly experience. It can quickly help mathematics enthusiasts improve their Abacus Mental Calculation performance and mathematical calculation skills. It is suitable for students of all levels, various abacus calculation, speed calculation, and mental calculation enthusiasts, as well as individuals preparing for Abacus Mental Calculation grade assessment and computerized accounting examinations. Our goal has always been to create a professional Abacus Mental Calculation and Flash Calculation application. We sincerely hope that this application can enhance your mental calculation ability, cognitive skills, and mathematical proficiency, and help you successfully pass the grade assessment exam!
FractionAndProbability
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カードをめくり、あたりを見つけながら、分数と確率を学ぶことができる革新的なアプリです。
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Verdict
The clearest difference is in-app purchases: FractionAndProbability at none against Abacus Mental Math Training's 1. FractionAndProbability also leads on update cadence (every 2 days vs monthly). Abacus Mental Math Training's advantage is iOS requirement (10.0 vs 16.6). On price, ads 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. Abacus Mental Math Training sells 1 one-off in-app purchase. FractionAndProbability asks for nothing beyond the download.
Abacus Mental Math Training ships an update monthly, FractionAndProbability every 2 days. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.
| Parameter | Abacus Mental Math Training | FractionAndProbability |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (31 ratings) — better | — |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 31 — better | — |
| Update frequency | Monthly | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 34 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Peikun Duan | Katsuhiko Yao |
In-app purchases
Abacus Mental Math Training
- Remove Ads$2.59
FractionAndProbability
No in-app purchases
Questions
Is Abacus Mental Math Training free?
Is FractionAndProbability free?
Do Abacus Mental Math Training or FractionAndProbability have ads?
Which is updated more often, Abacus Mental Math Training or FractionAndProbability?
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