# AirSync Sender vs CheckGrade

The clearest difference is price: AirSync Sender at Free against CheckGrade's $1.99. AirSync Sender also leads on device support (4 vs 2) and iOS requirement (13.0 vs 18.6). CheckGrade's advantage is update cadence (every 5 days vs every 5 weeks). On ads and in-app purchases there is nothing between them.

AirSync Sender is free to download; CheckGrade costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AirSync Sender ships an update every 5 weeks, CheckGrade every 5 days. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | AirSync Sender | CheckGrade |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| 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 5 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 82 MB | 2 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ViewSonic_International](https://appshunter.io/developer/871648106) | [Shih Yuen Hsiao](https://appshunter.io/developer/1685781048) |

## What reviewers say

### 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


### CheckGrade

[App page](https://appshunter.io/ios/app/checkgrade/id6804614052)

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

**In-app purchases:** none


## Frequently asked questions

### Is AirSync Sender free?

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

### Is CheckGrade free?

CheckGrade costs $1.99, with no in-app purchases.

### Do AirSync Sender or CheckGrade have ads?

Neither AirSync Sender nor CheckGrade shows ads.

### Which is updated more often, AirSync Sender or CheckGrade?

AirSync Sender ships an update every 5 weeks, and CheckGrade every 5 days. Most recently, AirSync Sender was updated on October 30, 2026 and CheckGrade on October 29, 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.*