# Pocketkey Dynamic vs Чёрная кость

The clearest difference is rating: Pocketkey Dynamic at 2.2 against Чёрная кость's 1.0. Pocketkey Dynamic also leads on ratings volume (10 vs 2). Чёрная кость's advantage is review sentiment (23% vs 13%) and iOS requirement (13.0 vs 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.

Pocketkey Dynamic holds the better App Store score, 2.2 against 1.0. That said, the two scores are not equally well evidenced: Pocketkey Dynamic has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 13% of Pocketkey Dynamic's written reviews are positive against 23% of Чёрная кость's, so the app with the better star average is not the one people write more warmly about.

Pocketkey Dynamic ships an update every 3 months, Чёрная кость every 2 months. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Pocketkey Dynamic | Чёрная кость |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.2 (10 ratings)](https://appshunter.io/ios/app/pocketkey-dynamic/id6449410922/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/id6450663270/reviews) |
| Number of ratings | **10** | 2 |
| Positive reviews | 12.5% of reviews | **23.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 2 MB | 49 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pocketkey](https://appshunter.io/developer/1688963613) | [Ekaterina Kurbatova](https://appshunter.io/developer/1450861162) |

## What reviewers say

### Pocketkey Dynamic

[App page](https://appshunter.io/ios/app/pocketkey-dynamic/id6449410922)

Access secure locations like gyms and offices with a dynamic, time-limited QR code. This app generates a unique code for entry, ensuring security by making it nearly impossible to copy or steal. Simply scan the code at the terminal for quick and safe access.

**Highlights:** Dynamic QR code generation, Time-limited code validity, Secure access to gyms and offices, Fast and safe entry, Mobile terminal scanning

**In-app purchases:** none


### Чёрная кость

[App page](https://appshunter.io/ios/app/id6450663270)

Book appointments at a men's barbershop chain offering affordable haircuts, beard trims, and shaves. Enjoy a relaxing atmosphere with amenities like PS4 gaming and a boxing bag.

**Highlights:** Online appointment booking, Select preferred barbers, Choose convenient time slots, Haircuts, Beard trimming, Shaving services

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

**In-app purchases:** none


## Frequently asked questions

### Is Pocketkey Dynamic free?

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

### Is Чёрная кость free?

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

### Which has better reviews, Pocketkey Dynamic or Чёрная кость?

Pocketkey Dynamic is rated higher. Pocketkey Dynamic averages 2.2 out of 5 from 10 ratings, while Чёрная кость averages 1.0 from 2 ratings.

### Do Pocketkey Dynamic or Чёрная кость have ads?

Neither Pocketkey Dynamic nor Чёрная кость shows ads.

### Which is updated more often, Pocketkey Dynamic or Чёрная кость?

Pocketkey Dynamic ships an update every 3 months, and Чёрная кость every 2 months. Most recently, Pocketkey Dynamic was updated on September 17, 2026 and Чёрная кость on September 21, 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.*