# Sudoku Solver Doku vs ChessScope AI

The clearest difference is update cadence: ChessScope AI at every 6 days against Sudoku Solver Doku's fortnightly. On price, ads, in-app purchases 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 and ChessScope AI sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Sudoku Solver Doku ships an update fortnightly, ChessScope AI every 6 days. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Sudoku Solver Doku | ChessScope AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/sudoku-solver-doku/id6753209563/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 40 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [1MB SAAS SL](https://appshunter.io/developer/1772669068) | [Cedric Guegan](https://appshunter.io/developer/6774659858) |

## What reviewers say

### 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 |


### ChessScope AI

[App page](https://appshunter.io/ios/app/chessscope-ai/id6774659856)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessScope AI Pro | $1.99 | per month |


## Frequently asked questions

### Is Sudoku Solver Doku free?

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

### Is ChessScope AI free?

ChessScope AI is free to download, with in-app purchases available.

### Do Sudoku Solver Doku or ChessScope AI have ads?

Neither Sudoku Solver Doku nor ChessScope AI shows ads.

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

Sudoku Solver Doku ships an update fortnightly, and ChessScope AI every 6 days. Most recently, Sudoku Solver Doku was updated on October 30, 2026 and ChessScope AI on November 10, 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.*