# Usmart4.0 vs YYLaser

The clearest difference is device support: YYLaser at 2 against Usmart4.0's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Usmart4.0 | YYLaser |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Size | 28 MB | 47 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [SINOMACHINE TECHNOLOGIES](https://appshunter.io/developer/1522831496) | [Shenzhen Youyoule Technology Co., Ltd.](https://appshunter.io/developer/1754888044) |

## What reviewers say

### Usmart4.0

[App page](https://appshunter.io/ios/app/usmart40/id6449350966)

**In-app purchases:** none


### YYLaser

[App page](https://appshunter.io/ios/app/yylaser/id6569226700)

**In-app purchases:** none


## Frequently asked questions

### Is Usmart4.0 free?

Usmart4.0 is free to download, with no in-app purchases.

### Is YYLaser free?

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

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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.*