# 虎口防撞 vs AirSync Sender

The clearest difference is update cadence: AirSync Sender at every 5 weeks against 虎口防撞's every 25 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.

虎口防撞 ships an update every 25 months, AirSync Sender every 5 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 虎口防撞 | AirSync Sender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.8 (5 ratings)](https://appshunter.io/ios/app/airsync-sender/id6453759985/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 469 MB | 82 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Chun Chia Hsu](https://appshunter.io/developer/989673480) | [ViewSonic_International](https://appshunter.io/developer/871648106) |

## What reviewers say

### 虎口防撞

[App page](https://appshunter.io/ios/app/id1524456314)

**In-app purchases:** none


### AirSync Sender

[App page](https://appshunter.io/ios/app/airsync-sender/id6453759985)

Wirelessly share your device screen to interactive displays or multiple iOS devices. Facilitates efficient multi-person communication with features like split screen and annotation.

**Highlights:** Wireless screen sharing, QR code sharing, Split screen support, Moderator mode, Remote control, Annotation tools, Screen mirroring

**In-app purchases:** none


## Frequently asked questions

### Is 虎口防撞 free?

虎口防撞 is free to download, with no in-app purchases.

### Is AirSync Sender free?

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

### Do 虎口防撞 or AirSync Sender have ads?

Neither 虎口防撞 nor AirSync Sender shows ads.

### Which is updated more often, 虎口防撞 or AirSync Sender?

虎口防撞 ships an update every 25 months, and AirSync Sender every 5 weeks. Most recently, 虎口防撞 was updated on November 7, 2026 and AirSync Sender on November 3, 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.*