Know Abacus vs #Learn Addition & Subtraction
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
#Learn Addition & Subtraction
This app helps children practice addition and subtraction with different difficulty levels. It features a virtual chalkboard for writing and tracking progress with stars and history logs.
- Addition and subtraction practice
- Multiple difficulty levels (Easy to Master)
- Gold star rewards for completion
- Virtual chalkboard for writing
- Progress tracking with history
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#Learn Addition & Subtraction is really simple to use and will help your kids to practice his additions and his subtractions. Different levels are available to meet his needs. EASY : 0 à 9 MEDIUM : 10 à 99 HARD : 100 à 999 MASTER : 1000 à 9999 Complete each level with 100% to gain a gold star :) The chalkboard will let him write or cross out numbers just like he would do on a sheet of paper. A history is available for you to track your kids progress.
Screenshots
Verdict
The clearest difference is review sentiment: Know Abacus at 96% against #Learn Addition & Subtraction's 0%. Know Abacus also leads on rating (4.7 vs 4.4) and ratings volume (67 vs 12). On price, update cadence, ads and in-app purchases 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 #Learn Addition & Subtraction sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Know Abacus holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Know Abacus has 67 ratings behind it against 12, 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 0% of #Learn Addition & Subtraction's.
Know Abacus ships an update every 2 months, #Learn Addition & Subtraction every 4 months. The most recent releases landed on July 6, 2026 and July 7, 2026 respectively.
| Parameter | Know Abacus | #Learn Addition & Subtraction |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (67 ratings) — better | 4.4 (12 ratings) |
| Positive reviews | 96.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 67 — better | 12 |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | Yes | Yes |
| 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 | 15.0 |
| Further details — not scored | ||
| Size | 28 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Kittipong Mungnirun | R2Cute |
Customer experience
Know Abacus
#Learn Addition & Subtraction
In-app purchases
Know Abacus
- Remove Ads$2.99
#Learn Addition & Subtraction
- Remove Ads$3.99
Questions
Is Know Abacus free?
Is #Learn Addition & Subtraction free?
Which has better reviews, Know Abacus or #Learn Addition & Subtraction?
Do Know Abacus or #Learn Addition & Subtraction have ads?
Which is updated more often, Know Abacus or #Learn Addition & Subtraction?
Other comparisons
