# CrossMath vs Petdoku!

The clearest difference is iOS requirement: Petdoku! at 15.0 against CrossMath's 17.0. 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.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CrossMath | Petdoku! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (23 ratings)](https://appshunter.io/ios/app/petdoku/id6776118236/reviews)** |
| Number of ratings | — | **23** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | — | Ad-supported |
| Size | 146 MB | 295 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Luong Phuc Thien](https://appshunter.io/developer/1893879592) | [DOUBLE8](https://appshunter.io/developer/1865045641) |

## What reviewers say

### CrossMath

[App page](https://appshunter.io/ios/app/crossmath-dogdoku-puzzle/id6772078613)

**In-app purchases:** none


### Petdoku!

[App page](https://appshunter.io/ios/app/petdoku/id6776118236)

A logic puzzle game that combines Sudoku and Minesweeper mechanics. Players place adorable pets in exclusive territories, adhering to rules about rows, columns, and diagonal proximity. Offers daily challenges and customizable pet themes for a relaxing yet mentally stimulating experience.

**Highlights:** Exclusive pet territory placement, Sudoku and Star Battle logic, Customizable pet companion skins, Offline play, Daily brain teaser challenges, Adjustable grid sizes up to 12x12

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

**In-app purchases:** none


## Frequently asked questions

### Is CrossMath free?

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

### Is Petdoku! free?

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

### Do CrossMath or Petdoku! have ads?

Both CrossMath and Petdoku! show ads.

### Which is updated more often, CrossMath or Petdoku!?

CrossMath ships an update weekly, and Petdoku! weekly. Most recently, CrossMath was updated on October 25, 2026 and Petdoku! on October 28, 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.*