# ShipPuzzle vs Calcudoku

The clearest difference is rating: Calcudoku at 5.0 against ShipPuzzle's 3.4. ShipPuzzle's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence 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.

Calcudoku holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 5 and 4 respectively.

ShipPuzzle ships an update every 3 weeks, Calcudoku monthly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ShipPuzzle | Calcudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/shippuzzle/id1018588166/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calcudoku-griddle-games/id6447776098/reviews)** |
| Number of ratings | **5** | 4 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | **Free** | Ad-supported |
| Size | 15 MB | 22 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Fujimoto](https://appshunter.io/developer/467085185) | [Pixel Forge LLC](https://appshunter.io/developer/1682619069) |

## What reviewers say

### ShipPuzzle

[App page](https://appshunter.io/ios/app/shippuzzle/id1018588166)

A logic puzzle game where players deduce the location of hidden ships on a grid. Numbers indicate occupied squares in rows and columns, guiding players to find the armada. Offers an endless supply of unique puzzles.

**Highlights:** Grid-based ship placement puzzle, Numerical clues for rows and columns, Automatic puzzle generation, Endless gameplay, Original puzzle engine

**Features:** macOS Compatibility

**In-app purchases:** none


### Calcudoku

[App page](https://appshunter.io/ios/app/calcudoku-griddle-games/id6447776098)

Engage your mind with mathematical challenges and addictive puzzle-solving fun. This app offers multiple grid sizes and uses all four basic arithmetic operations. Its intuitive design and offline play make it perfect for brain workouts anytime, anywhere.

**Highlights:** Multiple grid sizes (4x4, 5x5, 6x6), Addition, subtraction, multiplication, and division, Intuitive and minimalistic design, Offline play support, Engaging math puzzles

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ShipPuzzle free?

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

### Is Calcudoku free?

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

### Which has better reviews, ShipPuzzle or Calcudoku?

Calcudoku is rated higher. ShipPuzzle averages 3.4 out of 5 from 5 ratings, while Calcudoku averages 5.0 from 4 ratings.

### Do ShipPuzzle or Calcudoku have ads?

Calcudoku shows ads; ShipPuzzle does not.

### Which is updated more often, ShipPuzzle or Calcudoku?

ShipPuzzle ships an update every 3 weeks, and Calcudoku monthly. Most recently, ShipPuzzle was updated on November 1, 2026 and Calcudoku on November 3, 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.*