# Busy Binary vs ITクエスト | ITパスポートに合格できるアプリ

The clearest difference is in-app purchases: Busy Binary at none against ITクエスト | ITパスポートに合格できるアプリ's 7. Busy Binary also leads on iOS requirement (9.0 vs 16.0). ITクエスト | ITパスポートに合格できるアプリ's advantage is update cadence (every 5 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. ITクエスト | ITパスポートに合格できるアプリ sells 7 in-app purchases, starting at $0.99 per month. Busy Binary asks for nothing beyond the download.

Busy Binary ships an update every 6 weeks, ITクエスト | ITパスポートに合格できるアプリ every 5 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Busy Binary | ITクエスト | ITパスポートに合格できるアプリ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/busy-binary/id1273591168/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 180 MB | 1.6 GB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [teruhisa nagato](https://appshunter.io/developer/1034153997) | [hashimoto ryouya](https://appshunter.io/developer/1684907824) |

## 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


### ITクエスト | ITパスポートに合格できるアプリ

[App page](https://appshunter.io/ios/app/it-it/id6469339499)

Learn IT skills through a game where you defeat monsters and level up. Covers IT Passport and other certification exams. Features companion characters, gacha for new companions, review functions for incorrect answers, and analysis of your progress.

**Highlights:** Monster-battling gameplay, Companion character system, Gacha for new companions, Review function for incorrect answers, Progress analysis graphs, Study for IT Passport exam

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| itQuiz | $0.99 | per month |
| itQuiz | $2.99 | per 7 days |
| itQuiz | $5.99 | per month |
| itQuiz | $59.99 | per year |
| 1000コイン | $0.49 | one-time |
| 4000コイン | $0.99 | one-time |
| 15000コイン | $2.99 | one-time |


## Frequently asked questions

### Is Busy Binary free?

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

### Is ITクエスト | ITパスポートに合格できるアプリ free?

ITクエスト | ITパスポートに合格できるアプリ is free to download, with in-app purchases available.

### Do Busy Binary or ITクエスト | ITパスポートに合格できるアプリ have ads?

Both Busy Binary and ITクエスト | ITパスポートに合格できるアプリ show ads.

### Which is updated more often, Busy Binary or ITクエスト | ITパスポートに合格できるアプリ?

Busy Binary ships an update every 6 weeks, and ITクエスト | ITパスポートに合格できるアプリ every 5 days. Most recently, Busy Binary was updated on November 3, 2026 and ITクエスト | ITパスポートに合格できるアプリ on November 3, 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.*