# 随机数 vs 妙笔AI

The clearest difference is review sentiment: 随机数 at 91% against 妙笔AI's 0%. 随机数 also leads on rating (4.7 vs 1.0) and ratings volume (81 vs 4). 妙笔AI's advantage is in-app purchases (none vs 3) and update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. 随机数 sells 3 in-app purchases, starting at $0.99 per month. 妙笔AI asks for nothing beyond the download.

随机数 holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: 随机数 has 81 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 91% of 随机数's written reviews are positive against 0% of 妙笔AI's.

随机数 ships an update every 3 months, 妙笔AI every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 随机数 | 妙笔AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (81 ratings)](https://appshunter.io/ios/app/id1458304992/reviews)** | [1.0 (4 ratings)](https://appshunter.io/ios/app/ai/id6444692604/reviews) |
| Number of ratings | **81** | 4 |
| Positive reviews | **91.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Freemium | **Free** |
| Size | 33 MB | 914 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [海云 吴](https://appshunter.io/developer/1078143101) | [Beijing Yuanyue Technology Company Limited](https://appshunter.io/developer/1626620843) |

## What reviewers say

### 随机数

[App page](https://appshunter.io/ios/app/id1458304992)

Generate lucky numbers, aid decision-making, or create random selections for games. This app offers extensive customization for number ranges, batch generation, and even voice playback for random draws. Unlock advanced features and remove ads with a PRO subscription.

**Highlights:** Generate random numbers (0-999999999), Batch random number generation, Customizable number ranges, Voice playback for random draws, Random password generation, History of random draws

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $0.99 | per month |
| Yearly subscription | $1.99 | per year |
| 去广告专业版 | $2.99 | one-time |


### 妙笔AI

[App page](https://appshunter.io/ios/app/ai/id6444692604)

This AI-powered mobile application offers a rich content experience with smart recommendations and collection features. Engage in conversations with AI characters, ask questions via voice for instant text and image responses, and track your activity in a personalized user center.

**Highlights:** AI-powered content recommendations, Voice-to-text AI queries, AI-generated text and images, Interactive AI characters, Content browsing and collection, User activity tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 随机数 free?

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

### Is 妙笔AI free?

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

### Which has better reviews, 随机数 or 妙笔AI?

随机数 is rated higher. 随机数 averages 4.7 out of 5 from 81 ratings, while 妙笔AI averages 1.0 from 4 ratings.

### Do 随机数 or 妙笔AI have ads?

Neither 随机数 nor 妙笔AI shows ads.

### Which is updated more often, 随机数 or 妙笔AI?

随机数 ships an update every 3 months, and 妙笔AI every 3 weeks. Most recently, 随机数 was updated on November 6, 2026 and 妙笔AI 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.*