# Lune AI vs CRRN Prep Pro

The clearest difference is ads: CRRN Prep Pro at none against Lune AI's shown. Lune AI's advantage is update cadence (daily vs weekly) and iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Lune AI sells 2 in-app purchases, starting at $17.99 per month and CRRN Prep Pro sells 1 in-app purchase, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Lune AI ships an update daily, CRRN Prep Pro weekly. The most recent releases landed on June 3, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Lune AI | CRRN Prep Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (43 ratings)](https://appshunter.io/ios/app/lune-ai-language-learning/id6471368776/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 46 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Lune Digital LLC](https://appshunter.io/developer/1707548046) | [Corevia Technologies LLC](https://appshunter.io/developer/1854517538) |

## What reviewers say

### Lune AI

[App page](https://appshunter.io/ios/app/lune-ai-language-learning/id6471368776)

Master a new language with AI-powered tools. Engage in conversations, create flashcards, play games, and read AI-generated stories to enhance your learning journey. Offers guided chat-style learning and translation quizzes.

**Highlights:** AI-powered learning, Custom AI flashcards, AI-generated stories, Conversational practice with AI, Pronunciation guidance, Translation quizzes, Vocabulary tracking

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lune Premium Monthly | $17.99 | per month |
| Lune Premium Yearly | $159.99 | per year |


### CRRN Prep Pro

[App page](https://appshunter.io/ios/app/crrn-prep-pro/id6760804236)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CRRN Premium Monthly | $19.99 | per month |


## Frequently asked questions

### Is Lune AI free?

Lune AI is free to download, with in-app purchases available.

### Is CRRN Prep Pro free?

CRRN Prep Pro is free to download, with in-app purchases available.

### Do Lune AI or CRRN Prep Pro have ads?

Lune AI shows ads; CRRN Prep Pro does not.

### Which is updated more often, Lune AI or CRRN Prep Pro?

Lune AI ships an update daily, and CRRN Prep Pro weekly. Most recently, Lune AI was updated on June 3, 2026 and CRRN Prep Pro on September 8, 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.*