# Sudoku.by BinG vs TwentyFour

The clearest difference is in-app purchases: TwentyFour at none against Sudoku.by BinG's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sudoku.by BinG sells 1 one-off in-app purchase. TwentyFour asks for nothing beyond the download.

## The numbers

| Metric | Sudoku.by BinG | TwentyFour |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sudokuby-bing/id6775198044/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free | — |
| Size | 23 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [涵宇 朱](https://appshunter.io/developer/1896773994) | [天津果动云科技有限公司](https://appshunter.io/developer/6790053710) |

## What reviewers say

### Sudoku.by BinG

[App page](https://appshunter.io/ios/app/sudokuby-bing/id6775198044)

This app offers a minimalist Sudoku experience with no ads or tracking. It features four difficulty levels, an AI coach to teach solving techniques, and a beginner-friendly tutorial. Enjoy a distraction-free puzzle-solving session with customizable tools and bilingual support.

**Highlights:** Four difficulty levels (Easy to Master), AI coach for learning solving techniques, Beginner tutorial, Paper mode for traditional solving, Pencil notes and undo/erase tools, Bilingual English/Chinese support, On-device data storage

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sudoku Pro — Unlock Forever | $6.99 | one-time |


### TwentyFour

[App page](https://appshunter.io/ios/app/twentyfour-make-24/id6790053708)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku.by BinG free?

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

### Is TwentyFour free?

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

### Do Sudoku.by BinG or TwentyFour have ads?

Neither Sudoku.by BinG nor TwentyFour 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.*