# 乱数ジェネレーターX vs Preflop Range Builder

The clearest difference is update cadence: Preflop Range Builder at every 8 days against 乱数ジェネレーターX's every 3 months. 乱数ジェネレーターX's advantage is iOS requirement (14.0 vs 17.0). On price, ads, 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.

乱数ジェネレーターX ships an update every 3 months, Preflop Range Builder every 8 days. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 乱数ジェネレーターX | Preflop Range Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/x/id6471918556/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 7 MB | 4 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Yamagishi](https://appshunter.io/developer/1516430576) | [Seishin Miyaji](https://appshunter.io/developer/1324900707) |

## What reviewers say

### 乱数ジェネレーターX

[App page](https://appshunter.io/ios/app/x/id6471918556)

Generate random numbers easily with a simple tap. Set your desired range and get instant random numbers. Keep track of generated numbers in history and control duplicate generation.

**Highlights:** Tap to generate random numbers, Set custom number ranges, History of generated numbers, Toggle duplicate generation, Simple and intuitive interface, Completely free to use

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

**In-app purchases:** none


### Preflop Range Builder

[App page](https://appshunter.io/ios/app/preflop-range-builder/id6811308271)

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

**In-app purchases:** none


## Frequently asked questions

### Is 乱数ジェネレーターX free?

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

### Is Preflop Range Builder free?

Preflop Range Builder is free to download, with no in-app purchases.

### Do 乱数ジェネレーターX or Preflop Range Builder have ads?

Both 乱数ジェネレーターX and Preflop Range Builder show ads.

### Which is updated more often, 乱数ジェネレーターX or Preflop Range Builder?

乱数ジェネレーターX ships an update every 3 months, and Preflop Range Builder every 8 days. Most recently, 乱数ジェネレーターX was updated on October 9, 2026 and Preflop Range Builder on October 13, 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.*