# Sudoku vs Spire

The clearest difference is in-app purchases: Spire at none against Sudoku's 2. Sudoku's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Sudoku sells 2 in-app purchases, starting at $2.99 per month. Spire asks for nothing beyond the download.

## The numbers

| Metric | Sudoku | Spire |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 days | — |
| Size | 3 MB | 69 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Malachi Patrick](https://appshunter.io/developer/1821235556) | [Cristopher Guido](https://appshunter.io/developer/1849716676) |

## What reviewers say

### Sudoku

[App page](https://appshunter.io/ios/app/sudoku-remix/id6758680106)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remix Pro - Monthly | $2.99 | per month |
| Remix Pro - Annual | $24.99 | per year |


### Spire

[App page](https://appshunter.io/ios/app/spire-tower-stack/id6781474812)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku free?

Sudoku is free to download, with in-app purchases available.

### Is Spire free?

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

### Do Sudoku or Spire have ads?

Spire shows ads; Sudoku does not.

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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.*