# .Decluster Zero vs Sudoku

The clearest difference is price: Sudoku at Free against .Decluster Zero's $4.99. .Decluster Zero's advantage is ads (none vs shown) and ratings volume (16 vs 1). On rating, update cadence, in-app purchases and device support there is nothing between them.

Sudoku is free to download; .Decluster Zero costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sudoku holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: .Decluster Zero has 16 ratings behind it against 1, so its average is the more settled of the two.

.Decluster Zero ships an update every 2 months, Sudoku every 5 weeks. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | .Decluster Zero | Sudoku |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.8 (16 ratings)](https://appshunter.io/ios/app/decluster-zero/id1013536952/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sudoku-sharpen-your-mind/id6762376778/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 94.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | **Ad-supported** |
| Size | 54 MB | 213 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [MASAYUKI ITO](https://appshunter.io/developer/820672202) | [WEI CHEN](https://appshunter.io/developer/1893985522) |

## What reviewers say

### .Decluster Zero

[App page](https://appshunter.io/ios/app/decluster-zero/id1013536952)

Experience a Japanese-style bullet-hell shooter with retro graphics and modern gameplay. Utilize a unique bullet-canceling system and homing lasers to overcome intense enemy barrages. Features include multiple levels, challenging boss battles, and adjustable difficulty.

**Highlights:** Japanese style bullet-hell shooter, Bullet-Canceling system, Homing laser mechanic, 5+ levels with boss battles, 4 difficulty levels, Optimized mobile controls, Replay video integration

**Features:** Vision Pro support

**In-app purchases:** none


### Sudoku

[App page](https://appshunter.io/ios/app/sudoku-sharpen-your-mind/id6762376778)

This classic number puzzle offers a pure and addictive Sudoku experience for all logic enthusiasts. With multiple difficulty levels, smart hints, and engaging modes, it provides a mental workout for beginners and masters alike. Enjoy offline play, track your progress, and improve memory and focus.

**Highlights:** Multiple difficulty levels (Easy to Extreme), Smart hint system with heuristic guidance, Auto-error detection, Note mode for annotations, Daily Challenge and Journey Mode, Offline play, Highlight duplicates, Custom themes and eye-protection modes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is .Decluster Zero free?

.Decluster Zero costs $4.99, with no in-app purchases.

### Is Sudoku free?

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

### Which has better reviews, .Decluster Zero or Sudoku?

Sudoku is rated higher. .Decluster Zero averages 4.8 out of 5 from 16 ratings, while Sudoku averages 5.0 from 1 ratings.

### Do .Decluster Zero or Sudoku have ads?

Sudoku shows ads; .Decluster Zero does not.

### Which is updated more often, .Decluster Zero or Sudoku?

.Decluster Zero ships an update every 2 months, and Sudoku every 5 weeks. Most recently, .Decluster Zero was updated on November 1, 2026 and Sudoku on November 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.*