# Lambda Lingua vs Katalava

The clearest difference is in-app purchases: Katalava at none against Lambda Lingua's 2. Katalava also leads on update cadence (every 2 days vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lambda Lingua sells 2 in-app purchases, starting at $2.49 per month. Katalava asks for nothing beyond the download.

Lambda Lingua ships an update every 4 days, Katalava every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Lambda Lingua | Katalava |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/lambda-lingua-learn-greek/id6764751198/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 88 MB | 10 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [VIKTOR CHEBEREV](https://appshunter.io/developer/1895903650) | [Roman Krankus](https://appshunter.io/developer/1835400613) |

## What reviewers say

### Lambda Lingua

[App page](https://appshunter.io/ios/app/lambda-lingua-learn-greek/id6764751198)

Master Greek with a comprehensive trainer for reading, listening, writing, and speaking. Features smart flashcards, level-graded texts, AI-powered writing feedback, and offline functionality. Prepare for exams and build vocabulary effectively.

**Highlights:** Smart flashcards with spaced repetition, Level-graded Greek reading texts, AI-powered writing practice with feedback, On-device speech recognition for speaking practice, Offline functionality, Grammar reference by level

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lambda Lingua PRO | $2.49 | per month |
| Lambda Lingua PRO | $24.99 | per year |


### Katalava

[App page](https://appshunter.io/ios/app/katalava-learn-greek/id6775858597)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lambda Lingua free?

Lambda Lingua is free to download, with in-app purchases available.

### Is Katalava free?

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

### Do Lambda Lingua or Katalava have ads?

Neither Lambda Lingua nor Katalava shows ads.

### Which is updated more often, Lambda Lingua or Katalava?

Lambda Lingua ships an update every 4 days, and Katalava every 2 days. Most recently, Lambda Lingua was updated on October 31, 2026 and Katalava on October 31, 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.*