# Kak vs Luna Reader

The clearest difference is in-app purchases: Kak at none against Luna Reader's 2. Kak also leads on ads (none vs shown) and iOS requirement (13.0 vs 26.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Luna Reader sells 2 in-app purchases, starting at $9.99 per month. Kak asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Kak | Luna Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (40 ratings)](https://appshunter.io/ios/app/luna-reader-learn-languages/id6740998772/reviews)** |
| Number of ratings | — | **40** |
| Positive reviews | — | 91.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 86 MB | 156 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [INVALCRE (PRIVATE) LIMITED](https://appshunter.io/developer/1711085137) | [LUNASOFT DIJITAL HIZMETLER TICARET LIMITED SIRKETI](https://appshunter.io/developer/734831374) |

## What reviewers say

### Kak

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Luna Reader

[App page](https://appshunter.io/ios/app/luna-reader-learn-languages/id6740998772)

Enhance your language skills by reading and listening to stories tailored to your level. Instantly look up unknown words, save them for later review with flashcards, and practice with interactive exercises. Offers content in English, Russian, and Turkish, with additional features like AI-generated texts and song lyrics.

**Highlights:** Read stories at your language level (A1-C2), Tap words for instant definitions and translations, Save words and sentences for flashcard review, Listen to stories with synchronized text highlighting, AI-generated texts and song lyric practice, Progress tracking and daily streak monitoring

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $79.99 | per year |


## Frequently asked questions

### Is Kak free?

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

### Is Luna Reader free?

Luna Reader is free to download, with in-app purchases available.

### Do Kak or Luna Reader have ads?

Luna Reader shows ads; Kak does not.

### Which is updated more often, Kak or Luna Reader?

Kak ships an update every 3 days, and Luna Reader every 3 days. Most recently, Kak was updated on October 27, 2026 and Luna Reader on October 30, 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.*