# Flex Sudoku vs Vorax

The clearest difference is rating: Vorax at 5.0 against Flex Sudoku's 3.1. Flex Sudoku's advantage is ratings volume (8 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Vorax holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Flex Sudoku has 8 ratings behind it against 1, so its average is the more settled of the two.

Flex Sudoku ships an update every 2 months, Vorax every 5 weeks. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Flex Sudoku | Vorax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (8 ratings)](https://appshunter.io/ios/app/flex-sudoku/id1643590351/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vorax/id6763713720/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 4 MB | 41 MB |
| Requires iOS | **15.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Jatinder Gogna](https://appshunter.io/developer/1631001233) | [Huayou Changxin Shaanxi Information Technology Group Co. LTD](https://appshunter.io/developer/1680645521) |

## What reviewers say

### 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


### Vorax

[App page](https://appshunter.io/ios/app/vorax/id6763713720)

Control a sphere in a vibrant micro-world, devouring smaller objects to grow while evading larger predators. Enjoy intuitive controls, multiple game modes, and immersive visuals. Play anytime, anywhere, with no internet connection required.

**Highlights:** Intuitive virtual joystick controls, Level and Endless game modes, 4-tier AI system, Immersive visuals and audio, Offline play, Customizable settings

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

**In-app purchases:** none


## Frequently asked questions

### Is Flex Sudoku free?

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

### Is Vorax free?

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

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

Vorax is rated higher. Flex Sudoku averages 3.1 out of 5 from 8 ratings, while Vorax averages 5.0 from 1 ratings.

### Do Flex Sudoku or Vorax have ads?

Neither Flex Sudoku nor Vorax shows ads.

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

Flex Sudoku ships an update every 2 months, and Vorax every 5 weeks. Most recently, Flex Sudoku was updated on October 24, 2026 and Vorax on October 23, 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.*