# Fast Sudoku Solver vs Sudoku Solver Doku

The clearest difference is rating: Fast Sudoku Solver at 5.0 against Sudoku Solver Doku's 1.0. Fast Sudoku Solver also leads on in-app purchases (none vs 2) and ratings volume (4 vs 1). Sudoku Solver Doku's advantage is update cadence (fortnightly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Sudoku Solver Doku sells 2 in-app purchases, starting at $2.99 per 7 days. Fast Sudoku Solver asks for nothing beyond the download.

Fast Sudoku Solver holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Fast Sudoku Solver ships an update every 4 months, Sudoku Solver Doku fortnightly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Fast Sudoku Solver | Sudoku Solver Doku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/fast-sudoku-solver/id1469739609/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/sudoku-solver-doku/id6753209563/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 47 MB | 16 MB |
| Requires iOS | **10.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nikita Teplyakov](https://appshunter.io/developer/1469739608) | [1MB SAAS SL](https://appshunter.io/developer/1772669068) |

## What reviewers say

### Fast Sudoku Solver

[App page](https://appshunter.io/ios/app/fast-sudoku-solver/id1469739609)

Instantly solve any Sudoku puzzle with a single click. Simply input the current state of the board, and the application will provide the complete solution.

**Highlights:** Instant Sudoku solving, One-click solution, Input board state, Supports any Sudoku puzzle

**Features:** macOS Compatibility

**In-app purchases:** none


### Sudoku Solver Doku

[App page](https://appshunter.io/ios/app/sudoku-solver-doku/id6753209563)

Instantly solve any 9x9 Sudoku puzzle with detailed step-by-step explanations. Recognize puzzles from images or enter them manually, and learn advanced solving techniques to improve your skills.

**Highlights:** Smart image recognition for puzzles, Manual Sudoku entry, Detailed step-by-step solutions, Learn advanced solving techniques, Solution history tracking, Lightning-fast solving

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Yearly | $17.99 | per year |


## Frequently asked questions

### Is Fast Sudoku Solver free?

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

### Is Sudoku Solver Doku free?

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

### Which has better reviews, Fast Sudoku Solver or Sudoku Solver Doku?

Fast Sudoku Solver is rated higher. Fast Sudoku Solver averages 5.0 out of 5 from 4 ratings, while Sudoku Solver Doku averages 1.0 from 1 ratings.

### Do Fast Sudoku Solver or Sudoku Solver Doku have ads?

Neither Fast Sudoku Solver nor Sudoku Solver Doku shows ads.

### Which is updated more often, Fast Sudoku Solver or Sudoku Solver Doku?

Fast Sudoku Solver ships an update every 4 months, and Sudoku Solver Doku fortnightly. Most recently, Fast Sudoku Solver was updated on October 24, 2026 and Sudoku Solver Doku on October 30, 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.*