# Codex! vs Ultimate Brain

The clearest difference is rating: Codex! at 5.0 against Ultimate Brain's 1.0. Codex! also leads on ratings volume (10 vs 1). Ultimate Brain's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Codex! holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Codex! has 10 ratings behind it against 1, so its average is the more settled of the two.

Codex! ships an update weekly, Ultimate Brain every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Codex! | Ultimate Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/codex/id6738445369/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/ultimate-brain-crazy-spin/id6809819701/reviews) |
| Number of ratings | **10** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free | — |
| Size | 11 MB | 18 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Steven Phun](https://appshunter.io/developer/1585512108) | [GREGTEY WHENKE](https://appshunter.io/developer/6809819703) |

## What reviewers say

### Codex!

[App page](https://appshunter.io/ios/app/codex/id6738445369)

Engage your mind with a daily word puzzle that tests your vocabulary and logic. This game offers a classic brain teaser experience for enthusiasts of word games and crosswords.

**Highlights:** Daily brain teaser, Word puzzle challenges, Vocabulary testing, Logic challenges, Classic word game experience

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

**In-app purchases:** none


### Ultimate Brain

[App page](https://appshunter.io/ios/app/ultimate-brain-crazy-spin/id6809819701)

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

**In-app purchases:** none


## Frequently asked questions

### Is Codex! free?

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

### Is Ultimate Brain free?

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

### Which has better reviews, Codex! or Ultimate Brain?

Codex! is rated higher. Codex! averages 5.0 out of 5 from 10 ratings, while Ultimate Brain averages 1.0 from 1 ratings.

### Do Codex! or Ultimate Brain have ads?

Neither Codex! nor Ultimate Brain shows ads.

### Which is updated more often, Codex! or Ultimate Brain?

Codex! ships an update weekly, and Ultimate Brain every 2 weeks. Most recently, Codex! was updated on October 24, 2026 and Ultimate Brain on October 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.*