# CHPnet vs BÜİS

The clearest difference is iOS requirement: CHPnet at 8.0 against BÜİS's 15.0. On price, update cadence, ads 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.

CHPnet ships an update every 3 weeks, BÜİS every 6 weeks. The most recent releases landed on October 10, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | CHPnet | BÜİS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/buis/id1616588275/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | — | Free |
| Size | 16 MB | 61 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [CHP Bitem](https://appshunter.io/developer/1144878879) | [Gelir Idaresi Baskanligi](https://appshunter.io/developer/620908059) |

## What reviewers say

### CHPnet

[App page](https://appshunter.io/ios/app/chpnet/id1196925875)

**Features:** macOS Compatibility

**In-app purchases:** none


### BÜİS

[App page](https://appshunter.io/ios/app/buis/id1616588275)

Verify the authenticity of excise tax stamps on tobacco and alcoholic beverages in Turkey. This app helps consumers check security features digitally and with the naked eye to ensure product legitimacy.

**Highlights:** Verify excise tax stamps, Check security features, Digital verification, Naked eye inspection guide, Product information lookup

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CHPnet free?

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

### Is BÜİS free?

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

### Do CHPnet or BÜİS have ads?

Neither CHPnet nor BÜİS shows ads.

### Which is updated more often, CHPnet or BÜİS?

CHPnet ships an update every 3 weeks, and BÜİS every 6 weeks. Most recently, CHPnet was updated on October 10, 2026 and BÜİS on September 28, 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.*