# Master Addition vs Byeoldosa

The clearest difference is update cadence: Master Addition at every 3 weeks against Byeoldosa's every 6 months. Master Addition also leads on iOS requirement (10.0 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Master Addition ships an update every 3 weeks, Byeoldosa every 6 months. The most recent releases landed on August 24, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Master Addition | Byeoldosa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/byeoldosa-arithmetic-practice/id6443646489/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free | Free |
| Size | 83 MB | 10 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kyuseok Lee](https://appshunter.io/developer/1308172428) | [Hyekyung Jeong](https://appshunter.io/developer/1634743217) |

## What reviewers say

### Master Addition

[App page](https://appshunter.io/ios/app/master-addition/id1497703183)

This educational game challenges players to solve addition quizzes as quickly as possible. It progresses from single-digit to three-digit problems across ten rounds, aiming to crown the fastest "addition king."

**Highlights:** Addition quiz challenges, Progressive difficulty (1-3 digits), Timed rounds, Competitive scoring, Educational for children

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Byeoldosa

[App page](https://appshunter.io/ios/app/byeoldosa-arithmetic-practice/id6443646489)

This app offers step-by-step practice for basic arithmetic operations like addition, subtraction, multiplication, and division. It features levels organized by difficulty, from single-digit to three-digit numbers, with a vertical calculation mode that mimics writing sums on paper. Progress is automatically saved and visualized in charts to track speed and accuracy improvements.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Master Addition free?

Master Addition is free to download, with no in-app purchases.

### Is Byeoldosa free?

Byeoldosa is free to download, with no in-app purchases.

### Do Master Addition or Byeoldosa have ads?

Neither Master Addition nor Byeoldosa shows ads.

### Which is updated more often, Master Addition or Byeoldosa?

Master Addition ships an update every 3 weeks, and Byeoldosa every 6 months. Most recently, Master Addition was updated on August 24, 2026 and Byeoldosa on June 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*