# SY Laser vs Deezy欢唱版

The clearest difference is in-app purchases: SY Laser at none against Deezy欢唱版's 4. Deezy欢唱版's advantage is update cadence (every 4 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Deezy欢唱版 sells 4 one-off in-app purchases. SY Laser asks for nothing beyond the download.

SY Laser ships an update every 3 months, Deezy欢唱版 every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | SY Laser | Deezy欢唱版 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 75 MB | 39 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [深圳市深研数控有限公司](https://appshunter.io/developer/1887177720) | [广东和音元视电子科技有限公司](https://appshunter.io/developer/1777396592) |

## What reviewers say

### SY Laser

[App page](https://appshunter.io/ios/app/sy-laser/id6761890895)

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

**In-app purchases:** none


### Deezy欢唱版

[App page](https://appshunter.io/ios/app/deezy/id6771274761)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 歌词版会员 | $5.99 | one-time |
| MV版会员 | $6.99 | one-time |
| MV版会员 | $12.99 | one-time |
| MV版会员 | $24.99 | one-time |


## Frequently asked questions

### Is SY Laser free?

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

### Is Deezy欢唱版 free?

Deezy欢唱版 is free to download, with in-app purchases available.

### Do SY Laser or Deezy欢唱版 have ads?

Neither SY Laser nor Deezy欢唱版 shows ads.

### Which is updated more often, SY Laser or Deezy欢唱版?

SY Laser ships an update every 3 months, and Deezy欢唱版 every 4 days. Most recently, SY Laser was updated on October 25, 2026 and Deezy欢唱版 on October 25, 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.*