# Каталог Onliner vs 21vek.by

The clearest difference is ads: 21vek.by at none against Каталог Onliner's shown. 21vek.by also leads on monetization model (free vs ad-supported) and ratings volume (920 vs 131). Каталог Onliner's advantage is review sentiment (38% vs 26%). On price, rating, update cadence 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.

On the App Store both sit at effectively the same score — 4.8 for Каталог Onliner against 4.9 for 21vek.by. That said, the two scores are not equally well evidenced: 21vek.by has 920 ratings behind it against 131, so its average is the more settled of the two. Written reviews are what separate them: 38% of Каталог Onliner's written reviews are positive against 26% of 21vek.by's.

Каталог Onliner ships an update every 2 weeks, 21vek.by every 3 weeks. Both last shipped on November 6, 2026.

## The numbers

| Metric | Каталог Onliner | 21vek.by |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (131 ratings)](https://appshunter.io/ios/app/onliner/id1062235600/reviews) | **[4.9 (920 ratings)](https://appshunter.io/ios/app/21vekby/id1407213035/reviews)** |
| Number of ratings | 131 | **920** |
| Positive reviews | **37.7% of reviews** | 26.2% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 145 MB | 115 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Onliner LLC](https://appshunter.io/developer/1062235599) | [TRIOVIST, OOO](https://appshunter.io/developer/1407213034) |

## What reviewers say

### Каталог Onliner

[App page](https://appshunter.io/ios/app/onliner/id1062235600)

This shopping app serves as a comprehensive marketplace for finding and comparing products from various online stores in Belarus. It offers features like price comparison, detailed filters, and secure payment options, including installment plans. Additionally, it provides a fast delivery service and seller ratings to ensure a smooth shopping experience.

**Highlights:** Product comparison across stores, Detailed product filters, Installment payment options (Minipay), Loyalty card with cashback (Onlíner Clever), Fast delivery service (Onlíner Prime), Seller success ratings

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

**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 Каталог Onliner free?

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

### Is 21vek.by free?

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

### Which has better reviews, Каталог Onliner or 21vek.by?

21vek.by is rated higher. Каталог Onliner averages 4.8 out of 5 from 131 ratings, while 21vek.by averages 4.9 from 920 ratings.

### Do Каталог Onliner or 21vek.by have ads?

Каталог Onliner shows ads; 21vek.by does not.

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

Каталог Onliner ships an update every 2 weeks, and 21vek.by every 3 weeks. Most recently, Каталог Onliner was updated on November 6, 2026 and 21vek.by on November 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.*