# Чёрная кость vs KolyanVal Service

The clearest difference is update cadence: KolyanVal Service at every 5 days against Чёрная кость's every 2 months. Чёрная кость's advantage is iOS requirement (13.0 vs 15.0.0). 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.

Чёрная кость ships an update every 2 months, KolyanVal Service every 5 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Чёрная кость | KolyanVal Service |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/id6450663270/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 23.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 49 MB | 41 MB |
| Requires iOS | **13.0** | 15.0.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Ekaterina Kurbatova](https://appshunter.io/developer/1450861162) | [Alexander Muratov](https://appshunter.io/developer/1636177596) |

## What reviewers say

### 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


### KolyanVal Service

[App page](https://appshunter.io/ios/app/kolyanval-service/id6755876313)

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

**In-app purchases:** none


## Frequently asked questions

### Is Чёрная кость free?

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

### Is KolyanVal Service free?

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

### Do Чёрная кость or KolyanVal Service have ads?

Neither Чёрная кость nor KolyanVal Service shows ads.

### Which is updated more often, Чёрная кость or KolyanVal Service?

Чёрная кость ships an update every 2 months, and KolyanVal Service every 5 days. Most recently, Чёрная кость was updated on October 24, 2026 and KolyanVal Service on October 10, 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.*