# Samurai Sudoku vs Flex Sudoku

The clearest difference is rating: Samurai Sudoku at 4.6 against Flex Sudoku's 3.1. Samurai Sudoku also leads on review sentiment (75% vs 50%) and ratings volume (383 vs 8). Flex Sudoku's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Samurai Sudoku sells 10 one-off in-app purchases. Flex Sudoku asks for nothing beyond the download.

Samurai Sudoku holds the better App Store score, 4.6 against 3.1. That said, the two scores are not equally well evidenced: Samurai Sudoku has 383 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 75% of Samurai Sudoku's written reviews are positive against 50% of Flex Sudoku's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Samurai Sudoku | Flex Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (383 ratings)](https://appshunter.io/ios/app/samurai-sudoku/id594421598/reviews)** | [3.1 (8 ratings)](https://appshunter.io/ios/app/flex-sudoku/id1643590351/reviews) |
| Number of ratings | **383** | 8 |
| Positive reviews | **75.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 23 MB | 4 MB |
| Requires iOS | **15.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stanley Lam](https://appshunter.io/developer/453164363) | [Jatinder Gogna](https://appshunter.io/developer/1631001233) |

## What reviewers say

### Samurai Sudoku

[App page](https://appshunter.io/ios/app/samurai-sudoku/id594421598)

Experience a unique Sudoku challenge with five interconnected grids. Apply standard Sudoku rules to each 9x9 grid, filling numbers to ensure each row, column, and region has one of each digit. Offers multiple difficulty levels and puzzle variations.

**Highlights:** Five overlapping Sudoku grids, Five difficulty levels, Various Sudoku types (Gattai, Butterfly), Hint feature with conflict checking, Highlight same numbers, Autosave progress, Record best completion times

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diagonal Samurai Pack | $1.99 | one-time |
| Samurai Beginner Pack | $1.99 | one-time |
| Samurai Median Pack | $1.99 | one-time |
| Samurai Advanced Pack | $1.99 | one-time |
| Samurai Expert Pack | $1.99 | one-time |
| Samurai Advanced Pack 2 | $1.99 | one-time |
| Samurai Basic Pack | $1.99 | one-time |
| Jigsaw Samurai Pack | $2.99 | one-time |
| Anti Diagonal Samurai Pack | $2.99 | one-time |
| Samurai Sudoku | $3.99 | one-time |

**What reviewers like**

- 🎮 Excellent variety of puzzle types and game modes
- 🧠 Challenging and mentally stimulating gameplay
- 👍 User-friendly interface and intuitive controls
- 🎨 Well-designed graphics and visual presentation
- ⭐ Addictive and entertaining for extended play

**What reviewers complain about**

- 🐛 Frequent app crashes and freezing issues
- 📱 Unresponsive touch controls requiring multiple taps
- 🎥 Video loading problems for weekly puzzles
- 💾 Loss of purchased content and progress after updates
- 📺 Excessive and intrusive advertising

**Reported bugs**

- App crashes when watching required videos
- Weekly puzzle videos fail to load
- Game freezes mid-puzzle with no progress saved
- Purchased puzzles disappear after app updates or reinstalls
- Ad screens block gameplay with no visible close button

**Requested features**

- Auto-fill feature for candidate notes/pencil marks
- Pause button for games in progress
- Left-handed mode option
- Highlight vertical and horizontal lines for easier solving
- Ability to create and submit custom puzzles


### Flex Sudoku

[App page](https://appshunter.io/ios/app/flex-sudoku/id1643590351)

Engage with challenging Sudoku puzzles of various sizes, from classic 9x9 to larger 16x16 and 25x25 grids. Load pre-made games, create your own, and utilize a built-in solver and note-taking features to enhance your solving experience.

**Highlights:** Multiple Sudoku grid sizes (4x4 to 25x25), Load thousands of built-in games, Enter and solve your own games, Adjustable difficulty levels, Built-in Sudoku solver, Note-taking and hint system, Track game statistics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Samurai Sudoku free?

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

### Is Flex Sudoku free?

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

### Which has better reviews, Samurai Sudoku or Flex Sudoku?

Samurai Sudoku is rated higher. Samurai Sudoku averages 4.6 out of 5 from 383 ratings, while Flex Sudoku averages 3.1 from 8 ratings.

### Do Samurai Sudoku or Flex Sudoku have ads?

Samurai Sudoku shows ads; Flex Sudoku does not.

### Which is updated more often, Samurai Sudoku or Flex Sudoku?

Samurai Sudoku ships an update every 2 months, and Flex Sudoku every 2 months. Most recently, Samurai Sudoku was updated on November 1, 2026 and Flex Sudoku on November 3, 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.*