# Belka vs 서앤오AI

The clearest difference is in-app purchases: Belka at none against 서앤오AI's 2. Belka also leads on iOS requirement (12.0 vs 15.0). 서앤오AI's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads and device support there is nothing between them.

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

Belka ships an update every 2 weeks, 서앤오AI every 4 days. The most recent releases landed on September 26, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Belka | 서앤오AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 42 MB | 71 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sanghyung Park](https://appshunter.io/developer/1661682394) | [Seo & Oh](https://appshunter.io/developer/1863146900) |

## What reviewers say

### Belka

[App page](https://appshunter.io/ios/app/belka/id1661915744)

**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 Belka free?

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

### Is 서앤오AI free?

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

### Do Belka or 서앤오AI have ads?

Neither Belka nor 서앤오AI shows ads.

### Which is updated more often, Belka or 서앤오AI?

Belka ships an update every 2 weeks, and 서앤오AI every 4 days. Most recently, Belka was updated on September 26, 2026 and 서앤오AI on September 29, 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.*