# Busy Binary vs 素因数分解キングダム

The clearest difference is ads: 素因数分解キングダム at none against Busy Binary's shown. 素因数分解キングダム also leads on update cadence (weekly vs every 6 weeks). Busy Binary's advantage is iOS requirement (9.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

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

Busy Binary ships an update every 6 weeks, 素因数分解キングダム weekly. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Busy Binary | 素因数分解キングダム |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/busy-binary/id1273591168/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 180 MB | 55 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [teruhisa nagato](https://appshunter.io/developer/1034153997) | [Yuta Matsuda](https://appshunter.io/developer/1788852960) |

## What reviewers say

### Busy Binary

[App page](https://appshunter.io/ios/app/busy-binary/id1273591168)

Test your brain with a number conversion game. Convert binary to decimal in timed challenges or practice modes. Compete with others for high scores.

**Highlights:** Binary to Decimal Conversion, Training Mode, Challenge Mode, Difficulty Levels (Easy, Normal, Hard), Combo System, Global Ranking System

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

**In-app purchases:** none


### 素因数分解キングダム

[App page](https://appshunter.io/ios/app/id6740195589)

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

**In-app purchases:** none


## Frequently asked questions

### Is Busy Binary free?

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

### Is 素因数分解キングダム free?

素因数分解キングダム is free to download, with no in-app purchases.

### Do Busy Binary or 素因数分解キングダム have ads?

Busy Binary shows ads; 素因数分解キングダム does not.

### Which is updated more often, Busy Binary or 素因数分解キングダム?

Busy Binary ships an update every 6 weeks, and 素因数分解キングダム weekly. Most recently, Busy Binary was updated on October 6, 2026 and 素因数分解キングダム on September 28, 2026.

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