# Cyrillic Letters vs Kak

The clearest difference is in-app purchases: Kak at none against Cyrillic Letters's 2. Kak also leads on update cadence (every 3 days vs every 2 months) and iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Cyrillic Letters sells 2 in-app purchases, starting at $0.99 per month. Kak asks for nothing beyond the download.

Cyrillic Letters ships an update every 2 months, Kak every 3 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Cyrillic Letters | Kak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/cyrillic-letters/id6443334564/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 86 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PJM](https://appshunter.io/developer/568979019) | [INVALCRE (PRIVATE) LIMITED](https://appshunter.io/developer/1711085137) |

## What reviewers say

### Cyrillic Letters

[App page](https://appshunter.io/ios/app/cyrillic-letters/id6443334564)

Master the Cyrillic alphabet with an engaging memory game. This educational app helps users learn to recognize and recall Cyrillic letters through interactive play. Designed for quick learning and retention.

**Highlights:** Learn Cyrillic alphabet, Memory matching game, Interactive learning, Progressive difficulty, Supports iPhone and Apple Watch

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month subscription | $0.99 | per month |
| 1 year subscription | $6.99 | per year |


### Kak

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cyrillic Letters free?

Cyrillic Letters is free to download, with in-app purchases available.

### Is Kak free?

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

### Do Cyrillic Letters or Kak have ads?

Neither Cyrillic Letters nor Kak shows ads.

### Which is updated more often, Cyrillic Letters or Kak?

Cyrillic Letters ships an update every 2 months, and Kak every 3 days. Most recently, Cyrillic Letters was updated on November 3, 2026 and Kak on November 7, 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.*