# 优锐 vs Random Number Generator Kit

The clearest difference is ads: Random Number Generator Kit at none against 优锐's shown. 优锐's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (12.0 vs 17.0). 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.

优锐 ships an update every 2 weeks, Random Number Generator Kit monthly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 优锐 | Random Number Generator Kit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 34 MB | 9 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [明慧 陈](https://appshunter.io/developer/1535433310) | [Sarah Khosravani](https://appshunter.io/developer/1896519294) |

## What reviewers say

### 优锐

[App page](https://appshunter.io/ios/app/id6450949774)

**Features:** Vision Pro support

**In-app purchases:** none


### Random Number Generator Kit

[App page](https://appshunter.io/ios/app/random-number-generator-kit/id6772885334)

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

**In-app purchases:** none


## Frequently asked questions

### Is 优锐 free?

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

### Is Random Number Generator Kit free?

Random Number Generator Kit is free to download, with no in-app purchases.

### Do 优锐 or Random Number Generator Kit have ads?

优锐 shows ads; Random Number Generator Kit does not.

### Which is updated more often, 优锐 or Random Number Generator Kit?

优锐 ships an update every 2 weeks, and Random Number Generator Kit monthly. Most recently, 优锐 was updated on October 9, 2026 and Random Number Generator Kit on October 7, 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.*