# KPD vs Учебник Бармена

The clearest difference is update cadence: Учебник Бармена at monthly against KPD's every 5 months. Учебник Бармена also leads on iOS requirement (13.0 vs 16.0). 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.

KPD ships an update every 5 months, Учебник Бармена monthly. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | KPD | Учебник Бармена |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 10 MB | 29 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [НОУ МЦНМО](https://appshunter.io/developer/1235476259) | [Pavel Samashka](https://appshunter.io/developer/1633224549) |

## What reviewers say

### KPD

[App page](https://appshunter.io/ios/app/kpd-bio/id1229570219)

This app provides a comprehensive Russian-language electronic version of a leading biology textbook, ideal for high school students and teachers. It includes supplementary materials for practice and scientific article analysis, offering structured learning from basic to advanced concepts.

**Highlights:** Russian electronic textbook, Student Study Guide included, Inquiry in Action guide, University-level biology content, Illustrations and diagrams, Self-check questions and tasks, Electronic glossary search

**Features:** macOS Compatibility

**In-app purchases:** none


### Учебник Бармена

[App page](https://appshunter.io/ios/app/id1633224547)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KPD free?

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

### Is Учебник Бармена free?

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

### Do KPD or Учебник Бармена have ads?

Neither KPD nor Учебник Бармена shows ads.

### Which is updated more often, KPD or Учебник Бармена?

KPD ships an update every 5 months, and Учебник Бармена monthly. Most recently, KPD was updated on November 2, 2026 and Учебник Бармена on October 27, 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.*