# Sudoktor vs John’s Sudoku

The clearest difference is review sentiment: John’s Sudoku at 100% against Sudoktor's 50%. John’s Sudoku also leads on price (Free vs $0.99) and rating (5.0 vs 3.3). Sudoktor's advantage is ratings volume (7 vs 2) and iOS requirement (8.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

John’s Sudoku is free to download; Sudoktor costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

John’s Sudoku holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 50% of Sudoktor's written reviews are positive against 100% of John’s Sudoku's.

Sudoktor ships an update every 36 months, John’s Sudoku every 17 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Sudoktor | John’s Sudoku |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.3 (7 ratings)](https://appshunter.io/ios/app/sudoktor/id673673295/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/johns-sudoku/id1268251178/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 17 months** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 9 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TablEdit](https://appshunter.io/developer/492060416) | [shaojun lin](https://appshunter.io/developer/1263579053) |

## What reviewers say

### Sudoktor

[App page](https://appshunter.io/ios/app/sudoktor/id673673295)

This app assists in solving Sudoku puzzles, offering features to generate unlimited puzzles of varying difficulty, analyze existing ones, and provide detailed solving strategies. It allows manual puzzle entry and includes advanced tools for a deeper understanding of Sudoku mechanics.

**Highlights:** Generates unlimited Sudoku puzzles, Rates puzzle difficulty, Manual puzzle entry and copy-paste, Automatic pencil mark updates, Full Undo/Redo functionality, Advanced analysis (candidates, subsets, chains)

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

**In-app purchases:** none


### John’s Sudoku

[App page](https://appshunter.io/ios/app/johns-sudoku/id1268251178)

This puzzle game offers a comprehensive Sudoku experience with randomly generated puzzles across six difficulty levels. Users can also create custom puzzles, share them with friends, and utilize advanced features like error highlighting and auto-pencil.

**Highlights:** Randomly generated puzzles, Six difficulty levels, User-defined puzzles, Puzzle sharing via import/export, Error highlighting, Auto-pencil function, Undo/Redo functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoktor free?

Sudoktor costs $0.99, with no in-app purchases.

### Is John’s Sudoku free?

John’s Sudoku is free to download, with no in-app purchases.

### Which has better reviews, Sudoktor or John’s Sudoku?

John’s Sudoku is rated higher. Sudoktor averages 3.3 out of 5 from 7 ratings, while John’s Sudoku averages 5.0 from 2 ratings.

### Do Sudoktor or John’s Sudoku have ads?

Neither Sudoktor nor John’s Sudoku shows ads.

### Which is updated more often, Sudoktor or John’s Sudoku?

Sudoktor ships an update every 36 months, and John’s Sudoku every 17 months. Most recently, Sudoktor was updated on November 1, 2026 and John’s Sudoku on November 6, 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.*