# 费米扫描 vs 3D Spatial Imaging

The clearest difference is update cadence: 3D Spatial Imaging at every 11 days against 费米扫描's every 7 months. 费米扫描's advantage is iOS requirement (15.6 vs 17.0). 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.

费米扫描 ships an update every 7 months, 3D Spatial Imaging every 11 days. The most recent releases landed on June 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 费米扫描 | 3D Spatial Imaging |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 11 days** |
| Size | 13 MB | 47 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yunxiao Information Technology Company Limited](https://appshunter.io/developer/1785446567) | [文德 黎](https://appshunter.io/developer/1694930407) |

## What reviewers say

### 费米扫描

[App page](https://appshunter.io/ios/app/id6739461027)

**In-app purchases:** none


### 3D Spatial Imaging

[App page](https://appshunter.io/ios/app/3d-spatial-imaging/id6754584449)

**In-app purchases:** none


## Frequently asked questions

### Is 费米扫描 free?

费米扫描 is free to download, with no in-app purchases.

### Is 3D Spatial Imaging free?

3D Spatial Imaging is free to download, with no in-app purchases.

### Do 费米扫描 or 3D Spatial Imaging have ads?

Neither 费米扫描 nor 3D Spatial Imaging shows ads.

### Which is updated more often, 费米扫描 or 3D Spatial Imaging?

费米扫描 ships an update every 7 months, and 3D Spatial Imaging every 11 days. Most recently, 费米扫描 was updated on June 24, 2026 and 3D Spatial Imaging on September 17, 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.*