# Prof Pref vs Residento CZ

The clearest difference is in-app purchases: Prof Pref at none against Residento CZ's 10. Residento CZ's advantage is update cadence (every 6 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Residento CZ sells 10 in-app purchases, starting at $6.99 per month. Prof Pref asks for nothing beyond the download.

Prof Pref ships an update every 6 months, Residento CZ every 6 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Prof Pref | Residento CZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 days** |
| Size | 1 MB | 47 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vitaly Kulagin](https://appshunter.io/developer/1524623012) | [SERGEJ DEDUCHIN](https://appshunter.io/developer/1885811452) |

## What reviewers say

### Prof Pref

[App page](https://appshunter.io/ios/app/prof-pref/id1662598113)

**Features:** macOS Compatibility

**In-app purchases:** none


### Residento CZ

[App page](https://appshunter.io/ios/app/residento-cz/id6760702855)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $6.99 | per month |
| Expert Monthly | $17.99 | per month |
| Lite Yearly | $24.99 | per year |
| Expert Yearly | $149.99 | per year |
| 1 Visa | $0.99 | one-time |
| 5 Keys | $0.99 | one-time |
| 25 Keys | $2.99 | one-time |
| 5 Visas | $3.99 | one-time |
| 75 Keys | $6.99 | one-time |
| 15 Visas | $9.99 | one-time |


## Frequently asked questions

### Is Prof Pref free?

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

### Is Residento CZ free?

Residento CZ is free to download, with in-app purchases available.

### Do Prof Pref or Residento CZ have ads?

Neither Prof Pref nor Residento CZ shows ads.

### Which is updated more often, Prof Pref or Residento CZ?

Prof Pref ships an update every 6 months, and Residento CZ every 6 days. Most recently, Prof Pref was updated on October 27, 2026 and Residento CZ on October 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.*