# 4K EIS vs XLkj

The clearest difference is device support: XLkj at 2 against 4K EIS'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 | 4K EIS | XLkj |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Weekly |
| Size | 100 MB | 251 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [莉 崔](https://appshunter.io/developer/1309473859) | [深圳市瑞杰创新科技有限公司](https://appshunter.io/developer/1807427107) |

## What reviewers say

### 4K EIS

[App page](https://appshunter.io/ios/app/4k-eis/id6477264818)

**In-app purchases:** none


### XLkj

[App page](https://appshunter.io/ios/app/xlkj-fly/id6744380028)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 4K EIS free?

4K EIS is free to download, with no in-app purchases.

### Is XLkj free?

XLkj 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.*