# Kak vs OpenRussian Russian Dictionary

The clearest difference is in-app purchases: Kak at none against OpenRussian Russian Dictionary's 2. Kak also leads on update cadence (every 3 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OpenRussian Russian Dictionary sells 2 in-app purchases, starting at $3.49 per month. Kak asks for nothing beyond the download.

Kak ships an update every 3 days, OpenRussian Russian Dictionary every 2 weeks. The most recent releases landed on September 18, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | Kak | OpenRussian Russian Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/openrussian-russian-dictionary/id6448980686/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 86 MB | 32 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INVALCRE (PRIVATE) LIMITED](https://appshunter.io/developer/1711085137) | [Michel Helms](https://appshunter.io/developer/1687260227) |

## What reviewers say

### Kak

[App page](https://appshunter.io/ios/app/kak-learn-russian-language/id6443656825)

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenRussian Russian Dictionary

[App page](https://appshunter.io/ios/app/openrussian-russian-dictionary/id6448980686)

This app offers a comprehensive Russian language learning experience with a vast dictionary, example sentences, and interactive exercises. It includes flashcards, sentence builders, and listening/writing practice to help users progress from beginner to advanced levels.

**Highlights:** Extensive Russian word database, 350,000+ example sentences, Declension and conjugation tables, Interactive learning exercises, Flashcards and sentence builder, Progress tracking from A1 to C2

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Account | $3.49 | per month |
| Pro Account | $34.99 | per year |


## Frequently asked questions

### Is Kak free?

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

### Is OpenRussian Russian Dictionary free?

OpenRussian Russian Dictionary is free to download, with in-app purchases available.

### Do Kak or OpenRussian Russian Dictionary have ads?

Neither Kak nor OpenRussian Russian Dictionary shows ads.

### Which is updated more often, Kak or OpenRussian Russian Dictionary?

Kak ships an update every 3 days, and OpenRussian Russian Dictionary every 2 weeks. Most recently, Kak was updated on September 18, 2026 and OpenRussian Russian Dictionary on September 4, 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.*