# cardinal. vs Null Pattern

The clearest difference is ads: cardinal. at none against Null Pattern's shown. cardinal. also leads on iOS requirement (11.0 vs 14.0). Null Pattern's advantage is update cadence (daily vs every 3 days). On price, 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.

cardinal. ships an update every 3 days, Null Pattern daily. The most recent releases landed on September 30, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | cardinal. | Null Pattern |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/cardinal/id1589334930/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | **Daily** |
| Monetization | Free | — |
| Size | 99 MB | 100 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Perfect Hat Games LLC](https://appshunter.io/developer/1124547329) | [Peralysis Games](https://appshunter.io/developer/1670407582) |

## What reviewers say

### cardinal.

[App page](https://appshunter.io/ios/app/cardinal/id1589334930)

Engage in a minimalistic logic puzzle game where you deduce a secret solution using sixteen cards and clues. Enjoy procedurally generated boards for endless play and compete globally in daily challenges.

**Highlights:** Minimalistic logic puzzles, Deduce secret solutions, Procedurally generated boards, Endless regular mode, Daily global competitions, 16 logic cards

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

**In-app purchases:** none


### Null Pattern

[App page](https://appshunter.io/ios/app/null-pattern/id6759739934)

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

**In-app purchases:** none


## Frequently asked questions

### Is cardinal. free?

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

### Is Null Pattern free?

Null Pattern is free to download, with no in-app purchases.

### Do cardinal. or Null Pattern have ads?

Null Pattern shows ads; cardinal. does not.

### Which is updated more often, cardinal. or Null Pattern?

cardinal. ships an update every 3 days, and Null Pattern daily. Most recently, cardinal. was updated on September 30, 2026 and Null Pattern on September 27, 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.*