# ERG4Thai vs K

The clearest difference is device support: ERG4Thai at 3 against K'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 | ERG4Thai | K |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Size | 86 MB | 63 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 17+ |
| Developer | [Pollution Control Department, Thailand](https://appshunter.io/developer/966167337) | [Arkom Rattanasiri](https://appshunter.io/developer/494476148) |

## What reviewers say

### ERG4Thai

[App page](https://appshunter.io/ios/app/erg4thai/id1514892942)

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

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-scan-plus/id6465843029)

**In-app purchases:** none


## Frequently asked questions

### Is ERG4Thai free?

ERG4Thai is free to download, with no in-app purchases.

### Is K free?

K 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.*