Abacus Lesson - ADD and SUB -

3.3.3

Hirokuma.App

4.81

7,043 reviews

100,000+
Downloads

Free

This is an app that you can learn addition and subtraction using an abacus.

Abacus Lesson - ADD and SUB - Screenshot 1 of 4

Abacus Lesson - ADD and SUB - Screenshot 2 of 4

Abacus Lesson - ADD and SUB - Screenshot 3 of 4

Abacus Lesson - ADD and SUB - Screenshot 4 of 4

About Abacus Lesson - ADD and SUB -

Abacus Lesson - ADD and SUB - is an education app developed by Hirokuma.App.

Download Statistics

Abacus Lesson - ADD and SUB - has been downloaded 490 thousand times. In the last 30 days, the app was downloaded 6.1 thousand times.

User Ratings

Abacus Lesson - ADD and SUB - is rated 4.81 out of 5 stars. The rating is based on 7 thousand ratings.

App Information

Abacus Lesson - ADD and SUB - is FREE to download. The APK download size is 45.24 MB. The latest version available is 3.3.3. The last update was on October 13, 2025.

Technical Requirements

Abacus Lesson - ADD and SUB - requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play August 2020.

Description

An abacus is named "Soroban" in Japan. Do you know what an abacus is? The abacus is very simple calculator used in China, Japan, Korea and so on.

More data about Abacus Lesson - ADD and SUB -

Price	Free to download
Total downloads	490 thousand
Recent downloads	6.1 thousand
Rating	4.81 based on 7 thousand ratings
Ranking	Not ranked
Version	3.3.3
APK size	45.2 MB
Number of libraries	23
Designed for Android	6.0+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

Get a detailed PDF report for Abacus Lesson - ADD and SUB - with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Alternative downloads for the Abacus Lesson - ADD and SUB - app

Abacus Lesson - ADD and SUB - compared with similar apps

Common keywords of similar apps

Japan Https Abacus App Calculator

Keywords missing from this app

Calculations Converter Calculation Simple Math Electrical Scientific Basic Currency Conversion Addition Calculate Numbers Subtraction Unit History Easy Quick Division Loan Emi Multiplication Accurate Daily Tool Support Everyday Results Percentage Free Functions Motor Features Recent Fast Financial Power Voltage Wire Interest Convert Advanced Tools Operations Time Volume Perform

Google Play Rating history and histogram

6.3K

340

130

Downloads over time

Abacus Lesson - ADD and SUB - has been downloaded 490 thousand times. Over the past 30 days, it averaged 200 downloads per day.

Changelog of Abacus Lesson - ADD and SUB -

Show changelog

Developer information for Hirokuma.App

Hirokuma.App

hirokuma.app@gmail.com

Website

Legal name:

Address:

Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.

I'm the developer of this app

Comments on Abacus Lesson - ADD and SUB - for Android

★★★★★ butterfly piyusha · Apr 27, 2026

My experience is far better than expected yeah it is quite better, and it is helping me to learn it in a fun way if you are new or beginner then you should definitely try this thanks to the Japanese person who had made the app I absolutely appreciate him or her whoever it is has thought everything that we need to learn about abacus, and it has a proper lesson plan and everything I just appreciate everything in this app for better than I expected, and I don't have any issue currently don't play game

★★★★★ Govind Anilkumar · Mar 23, 2026

Great for beginners. Excellent introduction chapters. I'm taking Abacus for the very first time in my life and the app lessons are teaching me really well. Keep up the good work. Thanks a lot !!

★★☆☆☆ Akarina · Mar 12, 2026

So I got a right answer, but it was marked wrong (maybe because of a different way on how to count it?)

★★☆☆☆ Jennifer Goudge (Jen) · Mar 3, 2026

Great until lesson 3. Part way through there are required ads (that's fine it's a free app), however, even after letting said ads play, you can't exit the ads to continue the lesson 3 practice. There's an X in the top left corner after the ads, but it does nothing, so you can't access anything beyond two practice sessions into lesson 3.

Google Play Rankings for Abacus Lesson - ADD and SUB -

This app is not ranked

Technologies used by Abacus Lesson - ADD and SUB -

Abacus Lesson - ADD and SUB - is requesting 9 permissions and is using 23 libraries.

Permissions

Network communication

view network connections, full network access, Google Play billing service

System tools

prevent phone from sleeping

Extra

android.permission.ACCESS_ADSERVICES_AD_ID, android.permission.ACCESS_ADSERVICES_ATTRIBUTION, android.permission.ACCESS_ADSERVICES_TOPICS, android.permission.FOREGROUND_SERVICE, com.google.android.gms.permission.AD_ID

Ad network libraries

AdMob

Social libraries

None found

Development tools

Android Jetpack core

Android Architecture Components

Android Jetpack VersionedParcelable Android Jetpack Annotations Android Library Icon

Android Jetpack Annotations Firebase Android Library Icon

Firebase

Android Jetpack Widgets AndroidX Loader Android Library Icon

AndroidX Loader

Android Transition Support Library Kotlin Android Library Icon

Kotlin

Android Support Library collections

AndroidX Legacy: Support Library core utils AndroidX Cursor Adapter Android Library Icon

AndroidX Cursor Adapter

AndroidX Local Broadcast Manager

Android Support Library Print

Android Support Library Document File

AndroidX Legacy: Support Library core UI Android WorkManager Android Library Icon

Android WorkManager

Android Support Library Async Layout Inflater JetBrains Annotations Android Library Icon

JetBrains Annotations IntelliJ IDEA Android Library Icon

IntelliJ IDEA Unity 3D Android Library Icon

Unity 3D

FMOD Ex Programmers API

AppBrain is a directory focused on discovering great apps and games. We give statistics, rankings and search options that Google Play and the App Store don't have. All trademarks are owned by their respective owners. AppBrain doesn't offer APKs or binaries, and always lets users install the official version from Google Play or the App Store.

More apps