# Big Sudoku vs Flying Penguin

The clearest difference is ads: Flying Penguin at none against Big Sudoku's shown. Big Sudoku's advantage is update cadence (weekly vs every 4 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Big Sudoku sells 2 in-app purchases, starting at $0.99 per month and Flying Penguin sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Big Sudoku ships an update weekly, Flying Penguin every 4 weeks. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Big Sudoku | Flying Penguin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/big-sudoku/id6794924187/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 17 MB |
| Requires iOS | 17.0 | 17 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Derrick Huth](https://appshunter.io/developer/375731995) | [Jens Somers](https://appshunter.io/developer/1847195635) |

## What reviewers say

### Big Sudoku

[App page](https://appshunter.io/ios/app/big-sudoku/id6794924187)

This app offers a variety of Sudoku puzzles, from classic 9x9 to larger Samurai and 16x16 grids. It provides tools to help with bookkeeping, like auto pencil marks, without giving away solutions. Enjoy daily challenges and track your progress with streak-building features.

**Highlights:** Multiple Sudoku grid sizes (9x9, Samurai, 16x16), Four difficulty levels per puzzle type, Auto pencil mark feature, Daily puzzles for all styles, Streak tracking and rewards, Offline play, Light and dark themes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Free 1 Month | $0.99 | per month |
| Ad Free 1 Year | $9.99 | per year |


### Flying Penguin

[App page](https://appshunter.io/ios/app/flying-penguin-quick-math/id6801102741)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One-Time Premium Unlock | $3.99 | one-time |


## Frequently asked questions

### Is Big Sudoku free?

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

### Is Flying Penguin free?

Flying Penguin is free to download, with in-app purchases available.

### Do Big Sudoku or Flying Penguin have ads?

Big Sudoku shows ads; Flying Penguin does not.

### Which is updated more often, Big Sudoku or Flying Penguin?

Big Sudoku ships an update weekly, and Flying Penguin every 4 weeks. Most recently, Big Sudoku was updated on October 20, 2026 and Flying Penguin on October 24, 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.*