Simple Soroban

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

此应用程序是一个简单的日本算盘（soroban /そろばん）。它有一个免费的模式，您可以自由使用的算盘，并用4个操作（加法，减法，一个两位数的乘法和除法）和3个难度级别（易，中，硬），您必须争分夺秒挑战模式时钟进行计算。

包含教程：

* 基本概念

*此外

*减法

*一个位数乘法

*两位数的乘法

*师

也有一个自定义的挑战模式，你可以设置的问题和难点问题的数量，类型。

（这只是一个爱好的项目我做的乐趣。这个应用程序是免费的，不具备应用内购买或广告）。

[PERMISSIONS USAGE]

这是权限是如何在这个程序中使用的说明。

震动：应用程序可以震动的手机给用户的反馈。这可以启用/在设置屏幕禁用。

[隐私]

此应用程序不会收集或传输任何数据。您的设置，排名和挑战时间是本地您的手机上只存储。

你可以在这里查看隐私政策：http://bit.ly/simple-soroban-privacy