# 正航NBS vs ieI管理系統

The clearest difference is update cadence: ieI管理系統 at every 3 weeks against 正航NBS's every 2 months. 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.

正航NBS ships an update every 2 months, ieI管理系統 every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | 正航NBS | ieI管理系統 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 8 MB | 116 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [CHING HANG](https://appshunter.io/developer/548240045) | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) |

## What reviewers say

### 正航NBS

[App page](https://appshunter.io/ios/app/nbs/id6448622361)

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

**In-app purchases:** none


### ieI管理系統

[App page](https://appshunter.io/ios/app/iei/id6479982837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 正航NBS free?

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

### Is ieI管理系統 free?

ieI管理系統 is free to download, with no in-app purchases.

### Do 正航NBS or ieI管理系統 have ads?

Neither 正航NBS nor ieI管理系統 shows ads.

### Which is updated more often, 正航NBS or ieI管理系統?

正航NBS ships an update every 2 months, and ieI管理系統 every 3 weeks. Most recently, 正航NBS was updated on October 24, 2026 and ieI管理系統 on October 24, 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.*