# Sudoku 数独 vs Spider Stack

The clearest difference is ads: Sudoku 数独 at none against Spider Stack's shown. Sudoku 数独 also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, 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.

Sudoku 数独 ships an update every 6 weeks, Spider Stack every 2 months. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Sudoku 数独 | Spider Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (15K ratings)](https://appshunter.io/ios/app/spider-stack/id6756348947/reviews)** |
| Number of ratings | — | **15K** |
| Positive reviews | — | 61.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | — | Ad-supported |
| Size | 243 MB | 330 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Motivve Health Studios, LLC](https://appshunter.io/developer/1523373102) | [Gimica GmbH](https://appshunter.io/developer/1654487825) |

## What reviewers say

### Sudoku 数独

[App page](https://appshunter.io/ios/app/sudoku/id1527453059)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spider Stack

[App page](https://appshunter.io/ios/app/spider-stack/id6756348947)

A modern take on classic Spider Solitaire, offering strategic card stacking and puzzle-solving. Features daily challenges, rewarding progression, and helpful tools like hints and undo options for a smooth, enjoyable experience.

**Highlights:** Classic Spider Solitaire gameplay, Modern card design, Daily challenges and events, Progression system with rewards, Hints and undo options, Smooth drag-and-drop controls

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku 数独 free?

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

### Is Spider Stack free?

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

### Do Sudoku 数独 or Spider Stack have ads?

Spider Stack shows ads; Sudoku 数独 does not.

### Which is updated more often, Sudoku 数独 or Spider Stack?

Sudoku 数独 ships an update every 6 weeks, and Spider Stack every 2 months. Most recently, Sudoku 数独 was updated on October 9, 2026 and Spider Stack on October 13, 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.*