Home  ›  Education Apps  › KoAbacus - Mental Arithmetic

KoAbacus - Mental Arithmetic icon

KoAbacus - Mental Arithmetic 1.0

Updated: January 16, 2021

More informations

License: Free
Version: 1.0
File size: 1.1 MB
Publish date: January 16, 2021
Minimum OS Android 2.3+ (Gingerbread)
Category Android Education Apps
App name aboard.and.koabacus

Screenshot thumbnail

About KoAbacus - Mental Arithmetic app

Table of contents

  1. CloudApks's Review
  2. What's New
  3. Description
  4. User's Reviews
  5. Instruction for installing
  6. FAQ

CloudApks's review

KoAbacus - Mental Arithmetic app is a free Android Education app, has been published by aboard on January 16, 2021.

KoAbacus - Mental Arithmetic 1.0 is latest version of KoAbacus - Mental Arithmetic app updated by CloudApks.com on January 16, 2021. On this page you can find KoAbacus - Mental Arithmetic apk details, app permissions, previous versions, installing instruction as well as usefull reviews from verified users.

KoAbacus - Mental Arithmetic app apk we provide on this webiste is original and unmodified, no viruses or malware, no additional costs. If there are any problems about downloading, installing this app apk, please let us know.

What's New (Latest updates)

Abacus , Mental Arithmetic

The Description

KoAbacus 1.0.49 - Korean Abacus & Mental Arithmetic

The abacus is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere.

* button function
6,5,4,3,2,1 : - positional number
+ , - , x , / : the four arithmetical operation & new number genernation
9, 8, 7, 6, 5 : bounds
stat & end : result

* Menu Button
- Auto Test : Count, Delay
- Speech : Start, End, +, -, *, /
- Sound : Click Sound

* Start Button LongClick - Abcus Clear
* Menu Button LongClick - Volume Control (4.0 ~)
* [-] [x] [/] button LongClick - Auto Mental Arithnmetic

Ratings and Reviews

4.1 out of 5
2+ Ratings
5 ★ (40)
4 ★ (7)
3 ★ (9)
2 ★ (21)
1 ★ (159)

(*) is required

  • 5 : better
  • 5 : It's a great tool to practice your abacus and mental calculations for those who have learned before ;D
  • 5 : Very good app
  • 5 : Nice game ☺☺
  • 2 : While the lower screen is clear, the upper part is confusing and how to use is unclear at once, needs time to get how it works but not clear. Not good for kids learning this either!
  • 5 : I am studying ucmas is 2 level and some confusion then I take help
  • 4 : Good apps, but i don't know how to use abacus to calculate.
  • 5 : Excellent application but please fix layout issue in nexus 7, the lower half of the lower beads is truncated by the box and not displayed. This issue is not repro in my sony experia U. Also please consider adding more bounds and releasing a payable version without ads.
  • 5 : I can't learnt maths easily then I join ucmas I practice with this app now it is possible to learn maths ........u also installed this app........bye...byeeeeeeeeeeeeeeeeee......
  • 4 : its good & mentally powered mind use it
  • 5 : Now I am expert in abacus
  • 1 : Ok
  • 5 : Ucmas is good for maths
  • 5 : Loveo

Instruction for installing KoAbacus - Mental Arithmetic app apk on Android devices

Step 1: Download KoAbacus - Mental Arithmetic app apk on this page, save it to easy-to-find location.

Step 2: Make sure that third-party applications are allowed on your device. Go to Menu > Settings > Security and check Unknown Sources to allow your device to install applications from sources other than the Google Play Store.

Step 2: Open Downloads on your device by going to My Files or Files, tap the APK file you downloaded (aboard.and.koabacus-v1.0.apk), tap Install when prompted, this app will be installed on your device.

Note: Detailed steps may be varies with device. This apk file can also be installed on other devices like Windows, PC, Mac, Blackberry, ... Feel free to contact us if you have any questions.


Q: What is an APK File?

A: An Android Package Kit (APK for short) is the package file format used by the Android operating system for distribution and installation of mobile applications. Just like Windows (PC) systems use an .exe file for installing software, Android does the same.

Q: Why CloudApks.com can guarantee APK 100% safe?

A: Whenever someone wants to download an APK file from CloudApks.com, we'll check the corresponding APK file on Google Play and allow user download it directly (of course, we'll cache it on our server). If the APK file does not exist on Google Play, we'll search it in our cache.

Q: If I install an APK from CloudApks.com, will I be able to update the app from the Play Store?

A: Yes, absolutely. The Play Store installs APKs it downloads from Google's servers, and sideloading from a site like CloudApks.com goes through a very similar process, except you're the one performing the downloading and initiating the installation (sideloading).
As soon as the Play Store finds a version of the app newer than the one you've sideloaded, it will commence an update.

Q: What are Android Application permissions?

A: Applications require access to certain systems within your device. When you install an application, you are notified of all of the permissions required to run that application.

App Permissions

KoAbacus - Mental Arithmetic app apk 1.0 apk requires following permissions:
  • Allows applications to open network sockets.
  • Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
  • Allows applications to access information about networks.
  • Allows applications to access information about Wi-Fi networks.
  • This constant was deprecated in API level 21. No longer enforced.

Previous versions

KoAbacus - Mental Arithmetic 1.0:
Published on: January 16, 2021
File size: 1.1 MB
Download Apk

KoAbacus - Mental Arithmetic 1.0:
Published on: January 05, 2021
File size: 1.1 MB
Download Apk

KoAbacus - Mental Arithmetic 1.0:
Published on: October 09, 2020
File size: 1.1 MB
Download Apk

KoAbacus - Mental Arithmetic 1.0:
Published on: May 05, 2020
File size: 1.3 MB
Download Apk

KoAbacus - Mental Arithmetic 1.0:
Published on: February 07, 2019
File size: 1.2 MB
Download Apk

KoAbacus - Mental Arithmetic 1.0:
Published on: January 04, 2019
File size: 1.4 MB
Download Apk