# 77电脑助手 vs Air

The clearest difference is in-app purchases: Air at none against 77电脑助手's 5. Air also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 77电脑助手 sells 5 one-off in-app purchases. Air asks for nothing beyond the download.

77电脑助手 ships an update monthly, Air every 2 months. The most recent releases landed on September 17, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 77电脑助手 | Air |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (11 ratings)](https://appshunter.io/ios/app/air-keyboard/id6463187929/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free |
| Size | 68 MB | 36 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [开拓 蔺](https://appshunter.io/developer/1620485229) | [Hangzhou Small Fire Network Technology Co., Ltd.](https://appshunter.io/developer/1106805320) |

## What reviewers say

### 77电脑助手

[App page](https://appshunter.io/ios/app/77/id1620485227)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 77电脑助手-周VIP | $0.99 | one-time |
| 77电脑助手-月VIP | $0.99 | one-time |
| 77电脑助手-季VIP | $2.99 | one-time |
| 77电脑助手-年VIP | $3.99 | one-time |
| 77电脑助手-永久VIP | $9.99 | one-time |


### Air

[App page](https://appshunter.io/ios/app/air-keyboard/id6463187929)

Transform your mobile device into a seamless typing extension of your computer. Connect your physical keyboard over a local network for faster, more efficient communication and productivity on your phone or tablet.

**Highlights:** Connect computer keyboard via local network, One-click send message function, Desktop-like input experience, More screen space for apps, Multilingual support, Supports Mac/PC/Linux

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 77电脑助手 free?

77电脑助手 is free to download, with in-app purchases available.

### Is Air free?

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

### Do 77电脑助手 or Air have ads?

77电脑助手 shows ads; Air does not.

### Which is updated more often, 77电脑助手 or Air?

77电脑助手 ships an update monthly, and Air every 2 months. Most recently, 77电脑助手 was updated on September 17, 2026 and Air on September 22, 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.*