# Know Abacus > Educational app for children to learn abacus math, numbers, and calculations. (iPhone/iPad app by Kittipong Mungnirun.) - Source: https://appshunter.io/ios/app/know-abacus/id641867438 (this page in markdown: same URL + `.md`) - Developer: [Kittipong Mungnirun](https://appshunter.io/developer/488058533) - Category: Education, Games, Family, Puzzle - Price: Free with in-app purchases - Rating: 4.70/5 from 67 App Store ratings · 28 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 28 MB - Languages: American English, Arabic, French (France), European Portuguese, Russian, European Spanish, Thai, Turkish - Released: 2013-05-10 - Data updated: 2026-07-06 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/know-abacus/id641867438/reviews.md ## What is Know Abacus? 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 ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $2.99 | one-time | ## Recent user reviews (10 of 28) All indexed reviews: https://appshunter.io/ios/app/know-abacus/id641867438/reviews.md ### 5/5 — Know abacus *2026-03-11, version 2.0* I like this app ### 5/5 — Know abacus app *2026-03-08* This app is so good😻 ### 4/5 — Good app *2024-03-04, version 2.0* Maybe more lessons? Ive seen kids do like 10 rows of 2 and 3 digit numbers? just saying. ### 5/5 — Noorhan math *2023-07-13, version 2.0* 5 star ### 5/5 — Fantastic,amazing and fabulous *2022-07-04, version 1.20* It is fun and educative. ### 5/5 — “Know Abacus” is an amazing program!! *2020-05-24* “Know Abacus” is an amazing program for those who are interested in learning Abacus. You can jump right in to learn Abacus without owning one!! It will teach you the very basic of Abacus to advance. It gives you plenty of exercise to practice what you learned. Thank you for designing such awesome program with full features for us to use with charge us an arm and a leg!!! ### 5/5 — Best App *2020-05-06, version 1.20* Could you please add 3 digit multiplication and division? ### 5/5 — Outstanding! *2020-04-29, version 1.20* Wow, again! You read my past review and made some improvements. Thank you! Currently, the settings allow single digits and double digits. It would be great to have the option to increase the digits to 3,4,5, and so on. I can’t say enough about how this app has helped me increase my addition and subtraction skills. I really enjoy the mental feature a lot! ### 5/5 — Abacus training for kids *2019-11-16, version 1.20* Fabulous and easy to use for kids and parents User friendly and so much fun learning for me and the kids. As a mum I enjoyed learning this with this user friendly App! Love it and highly recommended! ### 5/5 — Excellent *2019-05-31, version 1.20* This app does a great job teaching the abacus skills sequentially and slowly and then incorporating older skills with new skills into random practice. It teaches multiplication and division as well as addition and subtraction. Suggestions for improvement would be to add practice for larger numbers and teach multiplication with two and three digit numbers. Also, it would be nice if you could turn off the number indicator to give learners more practice reading the numbers. This app is so good, I would pay money for an upgrade. It is the best app for learning the basic concepts of the abacus that I have found. ## Frequently asked questions about Know Abacus ### What does the Know Abacus app teach? This app teaches children how to use an abacus for various mathematical operations. It covers fundamental skills like counting, addition, and subtraction, as well as more advanced topics such as multiplication and division. The app aims to unlock a child's mathematical potential and improve their calculation abilities. ### What are the key features of Know Abacus? Key features include learning to count with an abacus, practicing addition and subtraction for 1 and 2-digit numbers, and mastering multiplication and division for 1-2 digit numbers. It also offers mental math exercises, review lessons, unlimited random lessons, and customizable abacus displays (black/white or colorful, two-touch or multi-touch). ### Is Know Abacus free to use? The app is free to download and use, but it does offer in-app purchases. This means some features or content might require a purchase to unlock. It also includes advertisements. ### What age group is Know Abacus suitable for? The app is suitable for children aged 5 and up who already have some familiarity with numbers and basic addition and subtraction. For younger children who are just starting with numbers, the 'KnowNumber' app is recommended. ### What languages are supported by Know Abacus? The app is localized in multiple languages to cater to a global audience. Supported languages include English, French, Spanish, Thai, Turkish, Arabic, Portuguese, and Russian, making it accessible for many children worldwide. ## Version history (last 5 releases) ### 2.0 — 2023-07-10 -UI Improvement -Bug fixes ### 1.20 — 2019-04-03 Minor bugs fixes. ### 1.19 — 2018-07-06 Added Russian and Portuguese languages ### 1.18 — 2017-10-08 -Minor bug fixes. ### 1.17 — 2017-08-30 -Update arabic languages. -Minor bug fixes. -Fix crashes on some devices. ## Apps similar to Know Abacus | App | Rating | Price | Category | | --- | --- | --- | --- | | [Abacus Lesson -Multiplication-](https://appshunter.io/ios/app/abacus-lesson-multiplication/id1582635868) | 5.0 (12) | Free | Education | | [Abacus Lesson -ADD and SUB-](https://appshunter.io/ios/app/abacus-lesson-add-and-sub/id1526785916) | 4.9 (580) | Free | Education | | [Abacus Simulator](https://appshunter.io/ios/app/abacus-simulator/id1558355099) | 4.6 (31) | Free | Education | | [Soroban Training](https://appshunter.io/ios/app/soroban-training/id1519658576) | 4.7 (172) | Free | Education | | [Abacus Exercise](https://appshunter.io/ios/app/abacus-exercise/id1523833529) | 4.5 (48) | Free | Education | | [KIDS SUM-UP! Happytouch®](https://appshunter.io/ios/app/kids-sum-up-happytouch/id563815972) | 3.9 (77) | Free | Education | ## More apps by Kittipong Mungnirun - [Know Number Lite](https://appshunter.io/ios/app/know-number-lite/id488062813) - [Back To School Game](https://appshunter.io/ios/app/back-to-school-game/id827602411) All apps by Kittipong Mungnirun: https://appshunter.io/developer/488058533 ## Related topics [ábaco familias](https://appshunter.io/ios/topics/ábaco-familias) · [abacus math](https://appshunter.io/ios/topics/abacus-math) · [soroban training](https://appshunter.io/ios/topics/soroban-training) · [simple soroban](https://appshunter.io/ios/topics/simple-soroban) · [mental abacus](https://appshunter.io/ios/topics/mental-abacus) · [abacus](https://appshunter.io/ios/topics/abacus) · [mental abacus book 2](https://appshunter.io/ios/topics/mental-abacus-book-2) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-06.*