# KULCS vs Dr. Perozin Hungary

The clearest difference is update cadence: KULCS at every 3 weeks against Dr. Perozin Hungary's every 2 months. Dr. Perozin Hungary's advantage is iOS requirement (12.0 vs 15.1). 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.

KULCS ships an update every 3 weeks, Dr. Perozin Hungary every 2 months. The most recent releases landed on October 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | KULCS | Dr. Perozin Hungary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 60 MB | 41 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Kulcspatikák Zrt.](https://appshunter.io/developer/1783345158) | [Odyssey-Cap](https://appshunter.io/developer/1690551067) |

## What reviewers say

### KULCS

[App page](https://appshunter.io/ios/app/kulcs/id6738997335)

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

**In-app purchases:** none


### Dr. Perozin Hungary

[App page](https://appshunter.io/ios/app/dr-perozin-hungary/id6739489543)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KULCS free?

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

### Is Dr. Perozin Hungary free?

Dr. Perozin Hungary is free to download, with no in-app purchases.

### Do KULCS or Dr. Perozin Hungary have ads?

Neither KULCS nor Dr. Perozin Hungary shows ads.

### Which is updated more often, KULCS or Dr. Perozin Hungary?

KULCS ships an update every 3 weeks, and Dr. Perozin Hungary every 2 months. Most recently, KULCS was updated on October 30, 2026 and Dr. Perozin Hungary on October 6, 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.*