Simple Soroban

Name: Simple Soroban
Availability: InStock
Rating: 4.510000228881836 (9820 reviews)
Author: Btco

Btco

4.5

9.82K reviews

1M+

Downloads

Rated for 3+

About this app

This application is a simple Japanese abacus (soroban / そろばん). It has a free mode where you can use the abacus freely, and a challenge mode with 4 operations (addition, subtraction, one and two digit multiplication, and division) and 3 difficulty levels (easy, medium, hard) where you must race against the clock to perform calculations.

Contains tutorials for:
* basic concepts
* addition
* subtraction
* one-digit multiplication
* two-digit multiplication
* division

Also has a custom challenge mode where you can set the number of questions, type of questions and difficulty.

(This is just a hobby project I'm doing for fun. This app is free and doesn't have in-app purchases or ads).

[PERMISSIONS USAGE]
This is a description of how permissions are used in this app.
Vibrate: The application can vibrate the phone to give user feedback. This can be enabled/disabled in the Settings screen.

[PRIVACY]
This application does not collect or transmit any data. Your settings, ranking and challenge times are stored locally on your phone only.
You can view the privacy policy here: http://bit.ly/simple-soroban-privacy

Updated on

Aug 11, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.

No data shared with third parties

Learn more about how developers declare sharing

No data collected

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Ratings and reviews

4.6

8.91K reviews

N Piazza

May 11, 2025

i have never reviewed a damn thing on this app store, but in the year of 2025, this app has no ads, no music, no purchases, and is entirely offline. i truly appreciate the integrity of the developer, and i went out of my way to leave a review, as there arent any pop-ups asking you to. the tutorials and challenges are simple, clear, really got me from zero to adding five digit numbers. i havent done this much math since high school, and im thoroughly enjoying it.

6 people found this review helpful

Alberto Vassena

May 19, 2025

Exactly what I was looking for: a clean and linear app. I have been seriously learning how a Soroban works. Thx, man. Really appreciated. 👍 As further options I would suggest 1) to add a flag to enable/disable the underlining of the intermediate result, 2) to add harder challenges (1 for each rod), 3) to add weighted averages and/or graphs to understand improvements if any, when compared to the past. Thx again! Excellent!! 👊👏🙋🏻‍♂️

Adnan

May 11, 2025

It is as the name implies: a soroban (Japanese abacus), and works effectively as one. There's no excessive visual nor sound, not even online highscore, and those helps in streamlining the experience of practicing. Some challenges are available, also predetermined drills are abundant. Finally, there's randomized problems with customizations, making it a long-term companion for practicing arithmetic.