Know Abacus vs 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
Read full descriptionHide full description
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
Abacus
This app provides a digital soroban abacus for learning and practicing calculations. It visually displays the numerical value of each column as beads are moved, aiding in mental math development. Designed for beginners, it offers a simple interface to explore the ancient calculating tool.
- Digital soroban abacus simulation
- Visual representation of column values
- Supports mental math practice
- Simple swipe and shake controls
- Beginner-friendly interface
Read full descriptionHide full description
A simple soroban abacus that also shows the number representing the value of each column. An abacus is a tool that has been used since ancient times to calculate. Calculations with numbers in the millions have been performed using the abacus, showing that it is a powerful tool. Mental math can be performed incredibly accurately by those who have mastered the abacus. And after witnessing some incredible mental math skills by a person who has used an abacus during his early years as a salesman, I decided to create a "beginner's abacus" based on the soroban abacus, which is a Japanese variant of the abacus. I hope this app will be of use to many people who are starting some interest in the abacus. [ Usage ] : = swipe up/down on the beads to make them move. = Shake the device to reset the beads. = Numbers on the top show the "actual" numbers of each column
Screenshots
Verdict
The clearest difference is rating: Know Abacus at 4.7 against Abacus's 2.6. Know Abacus also leads on update cadence (every 2 months vs every 44 months) and review sentiment (96% vs 67%). Abacus's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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. Know Abacus sells 1 one-off in-app purchase. Abacus asks for nothing beyond the download.
Know Abacus holds the better App Store score, 4.7 against 2.6. That said, the two scores are not equally well evidenced: Know Abacus has 67 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 96% of Know Abacus's written reviews are positive against 67% of Abacus's.
Know Abacus ships an update every 2 months, Abacus every 44 months. The most recent releases landed on July 6, 2026 and June 8, 2026 respectively.
| Parameter | Know Abacus | Abacus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (67 ratings) — better | 2.6 (10 ratings) |
| Positive reviews | 96.4% of reviews — better | 66.7% of reviews |
| Number of ratings | 67 — better | 10 |
| Update frequency | Every 2 months — better | Every 44 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 6.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Kittipong Mungnirun | Switt Kongdachalert |
Customer experience
Know Abacus
Abacus
In-app purchases
Know Abacus
- Remove Ads$2.99
Abacus
No in-app purchases
Questions
Is Know Abacus free?
Is Abacus free?
Which has better reviews, Know Abacus or Abacus?
Do Know Abacus or Abacus have ads?
Which is updated more often, Know Abacus or Abacus?
Other comparisons
