# Attendance Manager vs 서앤오AI

The clearest difference is in-app purchases: Attendance Manager at none against 서앤오AI's 2. 서앤오AI's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price, device support 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. Attendance Manager asks for nothing beyond the download.

Attendance Manager ships an update every 2 weeks, 서앤오AI every 4 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Attendance Manager | 서앤오AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 47 MB | 74 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KaHee Jeon](https://appshunter.io/developer/1827018623) | [Seo & Oh](https://appshunter.io/developer/1863146900) |

## What reviewers say

### Attendance Manager

[App page](https://appshunter.io/ios/app/attendance-manager-checky/id6757008588)

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

**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 Attendance Manager free?

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

### Is 서앤오AI free?

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

### Do Attendance Manager or 서앤오AI have ads?

Attendance Manager shows ads; 서앤오AI does not.

### Which is updated more often, Attendance Manager or 서앤오AI?

Attendance Manager ships an update every 2 weeks, and 서앤오AI every 4 days. Most recently, Attendance Manager was updated on October 24, 2026 and 서앤오AI on October 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.*