# Sudoku vs Brain Flex IQ Test

The clearest difference is in-app purchases: Sudoku at none against Brain Flex IQ Test's 2. Sudoku also leads on iOS requirement (12.0 vs 15.0). Brain Flex IQ Test's advantage is ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Brain Flex IQ Test sells 2 in-app purchases, starting at $4.99 per month. Sudoku asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Sudoku against 5.0 for Brain Flex IQ Test. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Sudoku | Brain Flex IQ Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sudoku-logic-puzzle/id1673355477/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/brain-flex-iq-test/id6801242023/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 65 MB | 10 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Gluvacevic](https://appshunter.io/developer/1485217415) | [Kirill Shatrov](https://appshunter.io/developer/6797782862) |

## What reviewers say

### Sudoku

[App page](https://appshunter.io/ios/app/sudoku-logic-puzzle/id1673355477)

Engage your mind with a classic number puzzle game. Offers thousands of daily challenges across four difficulty levels. Features include pencil mode, hints, and duplicate highlighting to aid your gameplay.

**Highlights:** Thousands of puzzles, Four difficulty levels, Daily challenges, Pencil mode, Highlight duplicates, Hints, Offline play

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

**In-app purchases:** none


### Brain Flex IQ Test

[App page](https://appshunter.io/ios/app/brain-flex-iq-test/id6801242023)

Test your cognitive abilities with a 50-question assessment covering pattern, logical, numerical, spatial, and verbal reasoning. Challenge friends, track your progress, and explore a vault of puzzles to keep your mind sharp.

**Highlights:** 50-question cognitive assessment, Five reasoning areas: pattern, logic, numerical, spatial, verbal, Personalized score and performance breakdown, Challenge friends and compare scores, Brain Flex Vault with puzzles and games, Sequence Breaker, Logic Grid, Codebreaker, Mind Maze puzzles

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Brain Flex Vault | $4.99 | per month |
| Brain Flex Assessment | $4.99 | one-time |


## Frequently asked questions

### Is Sudoku free?

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

### Is Brain Flex IQ Test free?

Brain Flex IQ Test is free to download, with in-app purchases available.

### Which has better reviews, Sudoku or Brain Flex IQ Test?

Sudoku and Brain Flex IQ Test are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Sudoku or Brain Flex IQ Test have ads?

Sudoku shows ads; Brain Flex IQ Test does not.

### Which is updated more often, Sudoku or Brain Flex IQ Test?

Sudoku ships an update every 4 days, and Brain Flex IQ Test every 4 days. Most recently, Sudoku was updated on November 3, 2026 and Brain Flex IQ Test 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.*