# Codex4 vs Lua Cafe

Codex4 and Lua Cafe both sit at 5.0 stars, but that hides the real split: 86% of Lua Cafe's written reviews are positive against 50% of Codex4's. Lua Cafe also leads on ratings volume (103 vs 2). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Codex4 sells 4 in-app purchases, starting at $12.99 per month and Lua Cafe sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Codex4 against 4.9 for Lua Cafe. That said, the two scores are not equally well evidenced: Lua Cafe has 103 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 50% of Codex4's written reviews are positive against 86% of Lua Cafe's.

Codex4 ships an update every 4 days, Lua Cafe every 5 days. The most recent releases landed on September 17, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Codex4 | Lua Cafe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/codex4-for-serious-study/id6743228019/reviews)** | [4.9 (103 ratings)](https://appshunter.io/ios/app/lua-cafe-speak-languages/id6748153479/reviews) |
| Number of ratings | 2 | **103** |
| Positive reviews | 50.0% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | Freemium | Free with in-app purchases |
| Size | 52 MB | 54 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jonas Richner](https://appshunter.io/developer/1801973188) | [Louis Fialho](https://appshunter.io/developer/1824490380) |

## What reviewers say

### Codex4

[App page](https://appshunter.io/ios/app/codex4-for-serious-study/id6743228019)

Build a usable vocabulary for your job, studies, or hobbies with smart, spaced repetition reviews. Master real word usage and track your progress with clear statistics. Designed for serious learners with a clean interface and no gimmicks.

**Highlights:** Add custom words from any text, Spaced repetition reviews (FSRS), Master word lemmas and conjugations, Clear progress statistics, Automatic word extraction, Data export and offline access

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $12.99 | per month |
| Pro | $14.00 | per month |
| Basic Yearly | $69.99 | per year |
| Pro Yearly | $85.00 | per year |


### Lua Cafe

[App page](https://appshunter.io/ios/app/lua-cafe-speak-languages/id6748153479)

Practice speaking over 30 languages with an AI tutor. Engage in natural conversations, receive instant feedback on grammar and translations, and improve fluency without pressure. Offers realistic AI voices for an immersive learning experience.

**Highlights:** Real-life conversation practice, Instant feedback and grammar tips, Ultra-realistic AI voices, Support for 30+ languages, No pressure learning environment

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lua | $14.99 | per month |
| 50 credits | $4.99 | one-time |


## Frequently asked questions

### Is Codex4 free?

Codex4 is free to download, with in-app purchases available.

### Is Lua Cafe free?

Lua Cafe is free to download, with in-app purchases available.

### Which has better reviews, Codex4 or Lua Cafe?

Codex4 is rated higher. Codex4 averages 5.0 out of 5 from 2 ratings, while Lua Cafe averages 4.9 from 103 ratings.

### Do Codex4 or Lua Cafe have ads?

Neither Codex4 nor Lua Cafe shows ads.

### Which is updated more often, Codex4 or Lua Cafe?

Codex4 ships an update every 4 days, and Lua Cafe every 5 days. Most recently, Codex4 was updated on September 17, 2026 and Lua Cafe on September 24, 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.*