# Знiжка vs 21vek.by

The clearest difference is iOS requirement: Знiжка at 9.0 against 21vek.by's 15.1. 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.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on November 2, 2026.

## The numbers

| Metric | Знiжка | 21vek.by |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (912 ratings)](https://appshunter.io/ios/app/21vekby/id1407213035/reviews)** |
| Number of ratings | — | **912** |
| Positive reviews | — | 26.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 12 MB | 114 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergey Vishnyov](https://appshunter.io/developer/626355352) | [TRIOVIST, OOO](https://appshunter.io/developer/1407213034) |

## What reviewers say

### Знiжка

[App page](https://appshunter.io/ios/app/i/id1176895807)

**Features:** macOS Compatibility

**In-app purchases:** none


### 21vek.by

[App page](https://appshunter.io/ios/app/21vekby/id1407213035)

Shop over a million products from top brands with a vast selection of electronics, home goods, and repair items. Enjoy fast delivery across Belarus, flexible installment payments, and a quality guarantee. Stay updated on deals and manage your orders easily.

**Highlights:** Over 1 million products, Fast delivery in Belarus, Installment payments up to 48 months, Quality guarantee, Bonus program and gift certificates, Intuitive search and filters, Customer reviews and ratings

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

**In-app purchases:** none


## Frequently asked questions

### Is Знiжка free?

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

### Is 21vek.by free?

21vek.by is free to download, with no in-app purchases.

### Do Знiжка or 21vek.by have ads?

Neither Знiжка nor 21vek.by shows ads.

### Which is updated more often, Знiжка or 21vek.by?

Знiжка ships an update every 3 weeks, and 21vek.by every 3 weeks. Most recently, Знiжка was updated on November 2, 2026 and 21vek.by on November 2, 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.*