# Luca | AI language tutor vs TEDxPatras2025 by Knowledge

The clearest difference is in-app purchases: TEDxPatras2025 by Knowledge at none against Luca | AI language tutor's 5. TEDxPatras2025 by Knowledge also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Luca | AI language tutor sells 5 in-app purchases, starting at $7.99 per month. TEDxPatras2025 by Knowledge asks for nothing beyond the download.

Luca | AI language tutor ships an update every 2 weeks, TEDxPatras2025 by Knowledge weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Luca | AI language tutor | TEDxPatras2025 by Knowledge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (17 ratings)](https://appshunter.io/ios/app/luca-ai-language-tutor/id6497877968/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 88 MB | 13 MB |
| Requires iOS | 15.0.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Alldone GmbH](https://appshunter.io/developer/1729417012) | [Knowledge SA](https://appshunter.io/developer/1077666835) |

## What reviewers say

### Luca | AI language tutor

[App page](https://appshunter.io/ios/app/luca-ai-language-tutor/id6497877968)

This AI-powered tutor helps you gain confidence in speaking English, German, Spanish, French, Italian, and Portuguese through real conversation practice. It offers a judgment-free environment and personalized lessons to fit your daily routine.

**Highlights:** AI conversation practice, Multiple language support, Personalized learning paths, No multiple-choice tests, Flexible learning schedule, Free trial available

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lucas Premium | $7.99 | per month |
| Lucas monthly | $14.99 | per month |
| Lucas yearly | $69.99 | per year |
| 1000 Credits | $3.99 | one-time |
| Lucas lifetime | $89.99 | one-time |


### TEDxPatras2025 by Knowledge

[App page](https://appshunter.io/ios/app/tedxpatras2025-by-knowledge/id6745174858)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Luca | AI language tutor free?

Luca | AI language tutor is free to download, with in-app purchases available.

### Is TEDxPatras2025 by Knowledge free?

TEDxPatras2025 by Knowledge is free to download, with no in-app purchases.

### Do Luca | AI language tutor or TEDxPatras2025 by Knowledge have ads?

Luca | AI language tutor shows ads; TEDxPatras2025 by Knowledge does not.

### Which is updated more often, Luca | AI language tutor or TEDxPatras2025 by Knowledge?

Luca | AI language tutor ships an update every 2 weeks, and TEDxPatras2025 by Knowledge weekly. Most recently, Luca | AI language tutor was updated on October 24, 2026 and TEDxPatras2025 by Knowledge on October 28, 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.*