# React Diffuse Lock vs NestlingNine Sudoku

The clearest difference is ads: React Diffuse Lock at none against NestlingNine Sudoku's shown. 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.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | React Diffuse Lock | NestlingNine Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Size | 11 MB | 8 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Frank Rogers](https://appshunter.io/developer/6786838782) | [Alby Gibson](https://appshunter.io/developer/6805391916) |

## What reviewers say

### React Diffuse Lock

[App page](https://appshunter.io/ios/app/react-diffuse-lock/id6786838780)

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

**In-app purchases:** none


### NestlingNine Sudoku

[App page](https://appshunter.io/ios/app/nestlingnine-sudoku/id6805391914)

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

**In-app purchases:** none


## Frequently asked questions

### Is React Diffuse Lock free?

React Diffuse Lock is free to download, with no in-app purchases.

### Is NestlingNine Sudoku free?

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

### Do React Diffuse Lock or NestlingNine Sudoku have ads?

NestlingNine Sudoku shows ads; React Diffuse Lock does not.

### Which is updated more often, React Diffuse Lock or NestlingNine Sudoku?

React Diffuse Lock ships an update weekly, and NestlingNine Sudoku weekly. Most recently, React Diffuse Lock was updated on October 1, 2026 and NestlingNine Sudoku on October 2, 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.*