# Ultimate Sudoku Pro vs Neon Physics

The clearest difference is in-app purchases: Ultimate Sudoku Pro at none against Neon Physics's 1. Ultimate Sudoku Pro also leads on iOS requirement (9.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Neon Physics sells 1 one-off in-app purchase. Ultimate Sudoku Pro asks for nothing beyond the download.

## The numbers

| Metric | Ultimate Sudoku Pro | Neon Physics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 61 MB | 6 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Laurent Scotto](https://appshunter.io/developer/1885359935) | [Steven Wilkinson](https://appshunter.io/developer/1441050108) |

## What reviewers say

### Ultimate Sudoku Pro

[App page](https://appshunter.io/ios/app/ultimate-sudoku-pro/id6760619348)

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

**In-app purchases:** none


### Neon Physics

[App page](https://appshunter.io/ios/app/neon-physics/id6760776904)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flow Physics Premium | $4.99 | one-time |


## Frequently asked questions

### Is Ultimate Sudoku Pro free?

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

### Is Neon Physics free?

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

### Do Ultimate Sudoku Pro or Neon Physics have ads?

Neither Ultimate Sudoku Pro nor Neon Physics shows ads.

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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.*