# 行動龍華 i vs CSF

The clearest difference is update cadence: 行動龍華 i at every 3 months against CSF's every 36 months. CSF's advantage is iOS requirement (12.0 vs 14.0). 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.

行動龍華 i ships an update every 3 months, CSF every 36 months. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 行動龍華 i | CSF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 36 months |
| Size | 24 MB | 0 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lunghwa University of Science and Technology](https://appshunter.io/developer/771329773) | [財團法人中華民國電腦技能基金會](https://appshunter.io/developer/594768047) |

## What reviewers say

### 行動龍華 i

[App page](https://appshunter.io/ios/app/i-moving-20/id771329770)

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

**In-app purchases:** none


### CSF

[App page](https://appshunter.io/ios/app/csf/id1227441175)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 行動龍華 i free?

行動龍華 i is free to download, with no in-app purchases.

### Is CSF free?

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

### Do 行動龍華 i or CSF have ads?

Neither 行動龍華 i nor CSF shows ads.

### Which is updated more often, 行動龍華 i or CSF?

行動龍華 i ships an update every 3 months, and CSF every 36 months. Most recently, 行動龍華 i was updated on October 16, 2026 and CSF on October 15, 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.*