# BookListViewer2 vs 乱数ジェネレータ

The clearest difference is in-app purchases: 乱数ジェネレータ at none against BookListViewer2's 1. BookListViewer2's advantage is ads (none vs shown) and iOS requirement (12.1 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. BookListViewer2 sells 1 one-off in-app purchase. 乱数ジェネレータ asks for nothing beyond the download.

BookListViewer2 ships an update every 3 months, 乱数ジェネレータ every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | BookListViewer2 | 乱数ジェネレータ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 11 MB | 28 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mika Hatakeyama](https://appshunter.io/developer/445272831) | [sakatech](https://appshunter.io/developer/1198949375) |

## What reviewers say

### BookListViewer2

[App page](https://appshunter.io/ios/app/booklistviewer2/id975024899)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を消す | $0.99 | one-time |


### 乱数ジェネレータ

[App page](https://appshunter.io/ios/app/id1532707004)

Generate random numbers within a specified range and quantity with this straightforward utility. It offers essential settings like preventing duplicates and sorting options, making it ideal for quick random selections and draws without unnecessary complexity.

**Highlights:** Generate random numbers, Specify range and quantity, Prevent duplicate numbers, Sort numbers (ascending/descending), List display option, Simple interface

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

**In-app purchases:** none


## Frequently asked questions

### Is BookListViewer2 free?

BookListViewer2 is free to download, with in-app purchases available.

### Is 乱数ジェネレータ free?

乱数ジェネレータ is free to download, with no in-app purchases.

### Do BookListViewer2 or 乱数ジェネレータ have ads?

乱数ジェネレータ shows ads; BookListViewer2 does not.

### Which is updated more often, BookListViewer2 or 乱数ジェネレータ?

BookListViewer2 ships an update every 3 months, and 乱数ジェネレータ every 2 months. Most recently, BookListViewer2 was updated on November 1, 2026 and 乱数ジェネレータ 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.*