# EGK Sudoku vs Circuit Crawl

The clearest difference is in-app purchases: EGK Sudoku at none against Circuit Crawl's 3. EGK Sudoku also leads on ads (none vs shown). Circuit Crawl's advantage is update cadence (weekly vs every 3 months) and iOS requirement (15.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Circuit Crawl sells 3 one-off in-app purchases. EGK Sudoku asks for nothing beyond the download.

EGK Sudoku ships an update every 3 months, Circuit Crawl weekly. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | EGK Sudoku | Circuit Crawl |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Size | 10 MB | 21 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Isaac Eng Gian Khor](https://appshunter.io/developer/1808933315) | [SOZER ONER](https://appshunter.io/developer/1883742368) |

## What reviewers say

### EGK Sudoku

[App page](https://appshunter.io/ios/app/egk-sudoku/id6761875409)

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

**In-app purchases:** none


### Circuit Crawl

[App page](https://appshunter.io/ios/app/circuit-crawl/id6790026246)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.99 | one-time |
| Supporter Pack | $1.99 | one-time |
| Recovery Vault | $2.99 | one-time |


## Frequently asked questions

### Is EGK Sudoku free?

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

### Is Circuit Crawl free?

Circuit Crawl is free to download, with in-app purchases available.

### Do EGK Sudoku or Circuit Crawl have ads?

Circuit Crawl shows ads; EGK Sudoku does not.

### Which is updated more often, EGK Sudoku or Circuit Crawl?

EGK Sudoku ships an update every 3 months, and Circuit Crawl weekly. Most recently, EGK Sudoku was updated on November 9, 2026 and Circuit Crawl on November 5, 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.*