# Sigma OA vs 澳門初級大人手冊

The clearest difference is update cadence: 澳門初級大人手冊 at every 3 days against Sigma OA's every 3 weeks. Sigma OA's advantage is iOS requirement (13.0 vs 16.4). On price, ads, 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.

Sigma OA ships an update every 3 weeks, 澳門初級大人手冊 every 3 days. The most recent releases landed on October 4, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Sigma OA | 澳門初級大人手冊 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 48 MB | 51 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Meta-Archit](https://appshunter.io/developer/662499590) | [SHEPHERD TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1833381158) |

## What reviewers say

### Sigma OA

[App page](https://appshunter.io/ios/app/sigma-oa/id1482739431)

**Features:** macOS Compatibility

**In-app purchases:** none


### 澳門初級大人手冊

[App page](https://appshunter.io/ios/app/id6814849358)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sigma OA free?

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

### Is 澳門初級大人手冊 free?

澳門初級大人手冊 is free to download, with no in-app purchases.

### Do Sigma OA or 澳門初級大人手冊 have ads?

Neither Sigma OA nor 澳門初級大人手冊 shows ads.

### Which is updated more often, Sigma OA or 澳門初級大人手冊?

Sigma OA ships an update every 3 weeks, and 澳門初級大人手冊 every 3 days. Most recently, Sigma OA was updated on October 4, 2026 and 澳門初級大人手冊 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.*