# 進数・補数変換 vs E資格 問題集

The clearest difference is in-app purchases: 進数・補数変換 at none against E資格 問題集's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. E資格 問題集 sells 1 one-off in-app purchase. 進数・補数変換 asks for nothing beyond the download.

## The numbers

| Metric | 進数・補数変換 | E資格 問題集 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 3 MB | 34 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Manato Abe](https://appshunter.io/developer/1766487879) | [takahashi masaki](https://appshunter.io/developer/1855419759) |

## What reviewers say

### 進数・補数変換

[App page](https://appshunter.io/ios/app/id6702007723)

**Features:** macOS Compatibility

**In-app purchases:** none


### E資格 問題集

[App page](https://appshunter.io/ios/app/e/id6762594426)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| E-JDLA Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is 進数・補数変換 free?

進数・補数変換 is free to download, with no in-app purchases.

### Is E資格 問題集 free?

E資格 問題集 is free to download, with in-app purchases available.

### Do 進数・補数変換 or E資格 問題集 have ads?

Neither 進数・補数変換 nor E資格 問題集 shows ads.

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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.*