# KAS POS vs SERP

The clearest difference is update cadence: KAS POS at every 10 days against SERP's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

KAS POS ships an update every 10 days, SERP every 3 weeks. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | KAS POS | SERP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Size | 49 MB | 22 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [KAS TECHNOLOGY CORPORATION](https://appshunter.io/developer/1240312897) | [Nguyen Thanh Tung](https://appshunter.io/developer/1824087390) |

## What reviewers say

### KAS POS

[App page](https://appshunter.io/ios/app/kas-pos/id1550575393)

**Features:** macOS Compatibility

**In-app purchases:** none


### SERP

[App page](https://appshunter.io/ios/app/serp/id6748969914)

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

**In-app purchases:** none


## Frequently asked questions

### Is KAS POS free?

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

### Is SERP free?

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

### Do KAS POS or SERP have ads?

Neither KAS POS nor SERP shows ads.

### Which is updated more often, KAS POS or SERP?

KAS POS ships an update every 10 days, and SERP every 3 weeks. Most recently, KAS POS was updated on October 6, 2026 and SERP on October 19, 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.*