# 仪表辅助NAVI vs USB扩展屏

The clearest difference is in-app purchases: 仪表辅助NAVI at none against USB扩展屏's 1. 仪表辅助NAVI also leads on iOS requirement (9.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. USB扩展屏 sells 1 one-off in-app purchase. 仪表辅助NAVI asks for nothing beyond the download.

Both ship on a similar rhythm, roughly daily. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 仪表辅助NAVI | USB扩展屏 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Daily | Daily |
| Size | 74 MB | 0 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [海林 严](https://appshunter.io/developer/1499873859) | [晓满 李](https://appshunter.io/developer/1515867430) |

## What reviewers say

### 仪表辅助NAVI

[App page](https://appshunter.io/ios/app/navi/id1513409667)

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

**In-app purchases:** none


### USB扩展屏

[App page](https://appshunter.io/ios/app/usb/id6502822709)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 完整版 | $0.99 | one-time |


## Frequently asked questions

### Is 仪表辅助NAVI free?

仪表辅助NAVI is free to download, with no in-app purchases.

### Is USB扩展屏 free?

USB扩展屏 is free to download, with in-app purchases available.

### Do 仪表辅助NAVI or USB扩展屏 have ads?

Neither 仪表辅助NAVI nor USB扩展屏 shows ads.

### Which is updated more often, 仪表辅助NAVI or USB扩展屏?

仪表辅助NAVI ships an update daily, and USB扩展屏 daily. Most recently, 仪表辅助NAVI was updated on October 7, 2026 and USB扩展屏 on October 1, 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.*