# Fun brain exercise vs Sudoku Trainer!

The clearest difference is rating: Sudoku Trainer! at 5.0 against Fun brain exercise's 4.4. Sudoku Trainer! also leads on update cadence (every 5 days vs every 7 months). Fun brain exercise's advantage is ratings volume (27 vs 5) and iOS requirement (13.0 vs 15.1). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Fun brain exercise sells 1 one-off in-app purchase and Sudoku Trainer! sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Sudoku Trainer! holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Fun brain exercise has 27 ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Fun brain exercise ships an update every 7 months, Sudoku Trainer! every 5 days. The most recent releases landed on October 22, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Fun brain exercise | Sudoku Trainer! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (27 ratings)](https://appshunter.io/ios/app/fun-brain-exercise-drmemory/id1330550865/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/sudoku-trainer/id6749164735/reviews)** |
| Number of ratings | **27** | 5 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 77 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Softnoesis](https://appshunter.io/developer/981506496) | [Nicholas Nelson](https://appshunter.io/developer/1826651384) |

## What reviewers say

### Fun brain exercise

[App page](https://appshunter.io/ios/app/fun-brain-exercise-drmemory/id1330550865)

This game offers a fun way to test and improve your mind's power through daily memory challenges. It features various visual styles and tracks your progress with scores and high scores.

**Highlights:** Memory testing and improvement, Multiple game styles (Marvel, Animals, Emojis, Flags, etc.), Score tracking and history, High score records, Background game sound, Pair matching gameplay

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Sudoku Trainer!

[App page](https://appshunter.io/ios/app/sudoku-trainer/id6749164735)

This app offers a clean and efficient Sudoku puzzle experience with multiple difficulty levels and helpful tools like notes mode and candidate filling. Enjoy a smooth gameplay with features like auto-save, dark mode, and offline play.

**Highlights:** Multiple difficulty levels, Notes mode, Candidate filling button, Smart hints, Auto-save progress, Dark mode, Offline play

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sudoku Premium Monthly | $0.99 | per month |
| Sudoku Premium Annual | $4.99 | per year |
| Sudoku Premium Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Fun brain exercise free?

Fun brain exercise is free to download, with in-app purchases available.

### Is Sudoku Trainer! free?

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

### Which has better reviews, Fun brain exercise or Sudoku Trainer!?

Sudoku Trainer! is rated higher. Fun brain exercise averages 4.4 out of 5 from 27 ratings, while Sudoku Trainer! averages 5.0 from 5 ratings.

### Do Fun brain exercise or Sudoku Trainer! have ads?

Both Fun brain exercise and Sudoku Trainer! show ads.

### Which is updated more often, Fun brain exercise or Sudoku Trainer!?

Fun brain exercise ships an update every 7 months, and Sudoku Trainer! every 5 days. Most recently, Fun brain exercise was updated on October 22, 2026 and Sudoku Trainer! on October 13, 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.*