# Sudoktor vs STutor

The clearest difference is review sentiment: STutor at 100% against Sudoktor's 50%. STutor also leads on rating (5.0 vs 3.0). Sudoktor's advantage is chart position (#189 vs unranked) and ratings volume (6 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Sudoktor costs $0.99 and STutor $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

STutor holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Sudoktor has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Sudoktor's written reviews are positive against 100% of STutor's.

Sudoktor ships an update every 36 months, STutor every 28 months. The most recent releases landed on September 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Sudoktor | STutor |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/sudoktor/id673673295/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stutor/id714298825/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 28 months** |
| Monetization | Paid | Paid |
| Best chart rank | **#189** | — |
| Size | 2 MB | 2 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TablEdit](https://appshunter.io/developer/492060416) | [Robert Carlson](https://appshunter.io/developer/714298828) |

## What reviewers say

### Sudoktor

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

**Currently charting:** #189 Top Paid · Board (US App Store)

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


### STutor

[App page](https://appshunter.io/ios/app/stutor/id714298825)

This app assists in solving Sudoku puzzles by offering three levels of hints and employing five logical solving strategies. It allows manual puzzle entry or input via an 81-character string, with options to save, recall, and manage puzzles. The app validates entries against its solution and displays possible numbers for incorrect moves.

**Highlights:** Three levels of hints, Five logical solving strategies, Manual puzzle entry, 81-character string input, Puzzle saving and management, Entry validation against solution, Display of possible numbers

**In-app purchases:** none


## Frequently asked questions

### Is Sudoktor free?

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

### Is STutor free?

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

### Which has better reviews, Sudoktor or STutor?

STutor is rated higher. Sudoktor averages 3.0 out of 5 from 6 ratings, while STutor averages 5.0 from 1 ratings.

### Do Sudoktor or STutor have ads?

Neither Sudoktor nor STutor shows ads.

### Which is updated more often, Sudoktor or STutor?

Sudoktor ships an update every 36 months, and STutor every 28 months. Most recently, Sudoktor was updated on September 1, 2026 and STutor on September 21, 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.*