# QSO vs My BESS

The clearest difference is iOS requirement: QSO at 9.0 against My BESS's 12.0. On price and in-app purchases 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 | QSO | My BESS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Size | 19 MB | 38 MB |
| Requires iOS | **9.0** | 12.0 |
| Age rating | 17+ | 4+ |
| Developer | [深圳市集智电子有限公司](https://appshunter.io/developer/1655111205) | [Anhui Udan Technology Co., Ltd.](https://appshunter.io/developer/1593792520) |

## What reviewers say

### QSO

[App page](https://appshunter.io/ios/app/qso/id6474469549)

**In-app purchases:** none


### My BESS

[App page](https://appshunter.io/ios/app/my-bess/id6480440582)

**In-app purchases:** none


## Frequently asked questions

### Is QSO free?

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

### Is My BESS free?

My BESS 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.*