# Brain Challenge vs 15 Puzzle

The clearest difference is update cadence: Brain Challenge at every 2 months against 15 Puzzle's every 14 months. Brain Challenge also leads on iOS requirement (6.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Brain Challenge ships an update every 2 months, 15 Puzzle every 14 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Brain Challenge | 15 Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (25 ratings)](https://appshunter.io/ios/app/brain-challenge-code-breaker/id989529469/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 14 months |
| Monetization | Free | — |
| Size | 6 MB | 8 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ARAPPDEV](https://appshunter.io/developer/879077351) | [Emanuel Boboiu](https://appshunter.io/developer/1680347055) |

## What reviewers say

### Brain Challenge

[App page](https://appshunter.io/ios/app/brain-challenge-code-breaker/id989529469)

Test your visual and auditory memory by re-entering increasingly longer codes. This addictive game challenges your recall with a unique nine-digit keyboard.

**Highlights:** Visual and auditory memory challenge, Increasingly longer codes, Score based on speed, Unique nine-digit keyboard, Addictive gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### 15 Puzzle

[App page](https://appshunter.io/ios/app/15-puzzle-an-accessible-game/id6480232251)

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

**In-app purchases:** none


## Frequently asked questions

### Is Brain Challenge free?

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

### Is 15 Puzzle free?

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

### Do Brain Challenge or 15 Puzzle have ads?

Neither Brain Challenge nor 15 Puzzle shows ads.

### Which is updated more often, Brain Challenge or 15 Puzzle?

Brain Challenge ships an update every 2 months, and 15 Puzzle every 14 months. Most recently, Brain Challenge was updated on October 24, 2026 and 15 Puzzle on October 5, 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.*