# Repattern AI vs 서앤오AI

The clearest difference is in-app purchases: Repattern AI at none against 서앤오AI's 2. 서앤오AI's advantage is update cadence (every 4 days vs every 6 weeks) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 서앤오AI sells 2 in-app purchases, starting at $3.99 per month. Repattern AI asks for nothing beyond the download.

Repattern AI ships an update every 6 weeks, 서앤오AI every 4 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Repattern AI | 서앤오AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Size | 37 MB | 71 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Madras Check](https://appshunter.io/developer/1080240012) | [Seo & Oh](https://appshunter.io/developer/1863146900) |

## What reviewers say

### Repattern AI

[App page](https://appshunter.io/ios/app/repattern-ai/id6761247894)

**In-app purchases:** none


### 서앤오AI

[App page](https://appshunter.io/ios/app/ai/id6792564436)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI 멤버쉽 (월간) | $3.99 | per month |
| AI 멤버쉽 (연간) | $39.99 | per year |


## Frequently asked questions

### Is Repattern AI free?

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

### Is 서앤오AI free?

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

### Do Repattern AI or 서앤오AI have ads?

Neither Repattern AI nor 서앤오AI shows ads.

### Which is updated more often, Repattern AI or 서앤오AI?

Repattern AI ships an update every 6 weeks, and 서앤오AI every 4 days. Most recently, Repattern AI was updated on October 6, 2026 and 서앤오AI on October 14, 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.*