Know Abacus vs Matsy Abacus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Know Abacus
This app teaches children how to use an abacus for various math operations. It covers counting, addition, subtraction, multiplication, and division, helping to develop their mathematical abilities and brain potential. It offers multiple learning modes and customization options.
- Abacus counting
- Addition and subtraction (1 & 2 digits)
- Multiplication and division (1-2 digits)
- Mental math practice
- Review and random lessons
- Customizable abacus (color, touch)
- Multiple languages
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Abacus is a wonderful mathematical instrument used for calculation. This app will help your children learn about Abacus, Numbers, Counting, Addition, and Subtraction. This is the first step to tap the unexploited potential in their brain and unleash their mathematical capability. Suitable for children age 5 and up, who know about numbers and some basic addition and subtraction. For smaller children, recommend KnowNumber app. * Counting with Abacus * Addition/Subtraction 1 digit * Addition/Subtraction 2 digits * Multiplication 1-2 digits * Division 1-2 digits * Mental math * Review lessons * Unlimited random lessons * Black/white or colorful abacus * Learning modes * Two-touch or multi-touch abacus * Left-handed mode Localized Languages: * English, French, Spanish, Thai, Turkey, Arabic, Portuguese, and Russian
Matsy Abacus
This educational app helps children master mental arithmetic through engaging games and adaptive trainers. It utilizes abacus techniques, flash cards, and proven methods to boost calculation speed, focus, and memory. Suitable for students, parents, and teachers seeking effective mental math tools.
- Abacus flash cards
- Multiplication and division trainers
- Mental math exercises
- Brother/Friend techniques
- 5050 mode
- Speed & accuracy games
- Adaptive difficulty
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Matsy Abacus – Mental Math Trainers for Boost mental calculation, focus, and memory through play! Matsy Abacus is an educational app that helps children master mental arithmetic with engaging exercises and adaptive trainers. Mental math, abacus techniques, flash cards, and proven methods like “Brother” and “Friend” — all in one app. Inside the app: * Flash cards for learning the abacus * Trainers for multiplication and division — including times tables * Mental math exercises: addition and subtraction with multiple levels * “Brother”, “Friend”, and “Brother + Friend” techniques — simple explanations and practice * 5050 mode — count from 1 to 100 and back * Speed & accuracy games — improve results daily * Flexible difficulty settings — adapts to your level What is mental arithmetic? Mental arithmetic is a method of mental calculation based on abacus practice. It develops: * Fast mental math * Concentration and attention * Logical and visual thinking * Memory and observation skills Who is it for? * Students in mental arithmetic schools * Math competition participants * Elementary school students (Grades 1–4) * Parents and teachers looking for effective mental math tools Why choose Matsy Abacus? * Simple and clear abacus learning * Fun mini-games and trainers * Suitable for both beginners and advanced users * Train anytime — even short sessions bring results Help your child grow mathematically — Download Matsy Abacus and start exploring the world of mental math today! Terms of Use: https://mental-workout.github.io/terms_of_use.html Privacy Policy: https://mental-workout.github.io/privacy_policy.html
Screenshots
Verdict
The clearest difference is ads: Matsy Abacus at none against Know Abacus's shown. Matsy Abacus also leads on update cadence (monthly vs every 2 months). Know Abacus's advantage is iOS requirement (11.0 vs 13.4). On price, rating, review sentiment and ratings volume 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. Know Abacus sells 1 one-off in-app purchase and Matsy Abacus sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Know Abacus against 4.9 for Matsy Abacus. Both are backed by a comparable volume of ratings — 78 and 30 respectively. Written reviews are what separate them: 96% of Know Abacus's written reviews are positive against 100% of Matsy Abacus's.
Know Abacus ships an update every 2 months, Matsy Abacus monthly. Both last shipped on November 6, 2026.
| Parameter | Know Abacus | Matsy Abacus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (78 ratings) | 4.9 (30 ratings) — better |
| Positive reviews | 96.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 78 — better | 30 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 28 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Kittipong Mungnirun | IGOR ILIN |
Customer experience
Know Abacus
Matsy Abacus
In-app purchases
Know Abacus
- Remove Ads$2.99
Matsy Abacus
- Mental Workout Premium Month7 Days trial$2.991 Month
- Premium (6 months)7 Days trial$8.996 Months
- Matsy Premium Year$9.991 Year
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- Mental Workout Premium Year7 Days trial$14.991 Year
- Mental Workout Premium$7.99
Questions
Is Know Abacus free?
Is Matsy Abacus free?
Which has better reviews, Know Abacus or Matsy Abacus?
Do Know Abacus or Matsy Abacus have ads?
Which is updated more often, Know Abacus or Matsy Abacus?
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