# Byeoldosa: Arithmetic Practice — Practice Basic Arithmetic

> Step-by-step arithmetic practice for addition, subtraction, multiplication, and division. (iPhone/iPad app by Hyekyung Jeong.)

- Source: https://appshunter.io/ios/app/byeoldosa-arithmetic-practice/id6443646489 (this page in markdown: same URL + `.md`)
- Developer: [Hyekyung Jeong](https://appshunter.io/developer/1634743217)
- Category: Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 18.0 · 10 MB
- Languages: American English, Korean
- Released: 2022-11-23
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/byeoldosa-arithmetic-practice/id6443646489/reviews.md

## What is Byeoldosa?

Byeoldosa is an arithmetic practice app for working through addition, subtraction, multiplication, and division step by step.
• Levels are organised by difficulty, so you can start from the basics and move on to more advanced problems at your own pace.
• Problems range from single-digit to three-digit numbers, with stages that change depending on whether carrying or borrowing is involved.
• In vertical (column) calculation mode, you can follow each column one box at a time, much like writing out the sum on paper.
• Every practice set is saved automatically, and your scores and time spent are shown in simple charts, so you can see how your speed and accuracy change as you keep practising.

It’s a good fit for students who want to strengthen their arithmetic, for anyone who’d like a bit of mental exercise, or for those moments when you just feel like doing a few number problems.

Whenever you feel like practising numbers,
just open Byeoldosa.

## Key features

- Step-by-step arithmetic practice
- Addition, subtraction, multiplication, division
- Difficulty levels
- Vertical (column) calculation mode
- Automatic practice set saving
- Progress charts for speed and accuracy


## Frequently asked questions about Byeoldosa

### What arithmetic operations does Byeoldosa cover?

Byeoldosa provides practice for addition, subtraction, multiplication, and division. Users can work through problems involving numbers from single-digit to three-digit.

### How are the difficulty levels in Byeoldosa organized?

Levels are organized by difficulty, allowing users to start with basic problems and progress to more advanced ones at their own pace. Stages adapt based on whether carrying or borrowing is involved.

### Does Byeoldosa offer a way to track progress?

Yes, every practice set is automatically saved. The app displays scores and time spent in simple charts, showing how speed and accuracy change over time.

### What devices is Byeoldosa available on?

Byeoldosa is available on iPhone and iPad devices.

### What is the age rating for Byeoldosa?

Byeoldosa has an age rating of 4+, making it suitable for young learners and children.

### How often is Byeoldosa updated?

The latest version is 1.6.1, last updated on November 19, 2025. This indicates regular updates to improve the app.

### Does Byeoldosa have ads?

No, Byeoldosa is ad-free, providing an uninterrupted learning experience for users.

### What is the user sentiment for Byeoldosa?

Based on the available data, Byeoldosa has a perfect rating of 5.0 stars from 1 rating, indicating very positive user sentiment.

## Version history (last 5 releases)

### 1.6.1 — 2025-11-19

Design improvements
• Overall colors, layout, and icon style have been refined to provide a more natural and clean look than before.

Device-specific layout updates
• Layouts are now optimized separately for iPhone, iPad, and Mac so each device makes better use of its screen and feels more spacious.

### 1.5.2 — 2025-01-23

1. Default user is added at the start.
2. The 'Delete Selected Record' menu has been added to the Activity stats chart, allowing users to permanently delete records through this option.

### 1.5.1 — 2024-10-30

1. Dark Mode Support
The app now supports a dark-mode appearance for a more comfortable viewing experience in low-light conditions.

2. Physical Keyboard Compatibility
You can use a physical keyboard for input, making calculations even easier and more efficient.

3. Detailed Activity Stats
The app provides comprehensive statistics on your solving activities, allowing you to analyze your performance and track your learning progress over time.

### 1.4 — 2023-02-20

Minor changes in design and keyboard-key handler for enhanced easy testing using keyboard.
Fix graphic layout issue in the Mac

### 1.3 — 2022-11-23

No release notes.

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*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 2026-06-04.*