# Sudoku Puzzle Solver vs QR Reader * Barcode Scanner

The clearest difference is in-app purchases: Sudoku Puzzle Solver at none against QR Reader * Barcode Scanner's 3. Sudoku Puzzle Solver also leads on iOS requirement (12.0 vs 15.1). QR Reader * Barcode Scanner's advantage is ads (none vs shown) and update cadence (weekly vs every 38 months). On price and device support there is nothing between them.

Both are free to download. QR Reader * Barcode Scanner sells 3 in-app purchases, starting at $0.99 per 7 days. Sudoku Puzzle Solver asks for nothing beyond the download.

Sudoku Puzzle Solver ships an update every 38 months, QR Reader * Barcode Scanner weekly. Both last shipped on September 29, 2026.

## The numbers

| Metric | Sudoku Puzzle Solver | QR Reader * Barcode Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (18 ratings)](https://appshunter.io/ios/app/sudoku-puzzle-solver/id1527437039/reviews)** | — |
| Number of ratings | **18** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 38 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 5 MB | 43 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [aZeR DiLLs](https://appshunter.io/developer/491310978) | [ONLINE CLINIC YAZILIM LIMITED SIRKETI](https://appshunter.io/developer/1764740453) |

## What reviewers say

### Sudoku Puzzle Solver

[App page](https://appshunter.io/ios/app/sudoku-puzzle-solver/id1527437039)

This app quickly solves Sudoku puzzles of any difficulty level. It highlights solved cells in green and can identify invalid or unsolvable puzzles. Users can also use a 'PEEK' feature to see possible values for each cell, acting as a manual solving assistant.

**Highlights:** Solves Sudoku puzzles in seconds, Supports easy, medium, hard, and expert difficulties, Identifies invalid or unsolvable puzzles, Highlights solved cells in green, PEEK feature shows possible cell values, Acts as a manual solving assistant

**Features:** macOS Compatibility

**In-app purchases:** none


### QR Reader * Barcode Scanner

[App page](https://appshunter.io/ios/app/qr-reader-barcode-scanner/id6758448471)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Pro Weekly | $0.99 | per 7 days |
| QR Pro Monthly | $2.99 | per month |
| QR Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is Sudoku Puzzle Solver free?

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

### Is QR Reader * Barcode Scanner free?

QR Reader * Barcode Scanner is free to download, with in-app purchases available.

### Do Sudoku Puzzle Solver or QR Reader * Barcode Scanner have ads?

Sudoku Puzzle Solver shows ads; QR Reader * Barcode Scanner does not.

### Which is updated more often, Sudoku Puzzle Solver or QR Reader * Barcode Scanner?

Sudoku Puzzle Solver ships an update every 38 months, and QR Reader * Barcode Scanner weekly. Most recently, Sudoku Puzzle Solver was updated on September 29, 2026 and QR Reader * Barcode Scanner on September 29, 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.*