# sudo vs Doublio

The clearest difference is price: Doublio at Free against sudo's $2.99. Doublio also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (15.0 vs 17.0). sudo's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Doublio is free to download; sudo costs $2.99 up front. Doublio sells 1 one-off in-app purchase. sudo asks for nothing beyond the download.

sudo ships an update every 3 weeks, Doublio weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | sudo | Doublio |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sudo-simple-sudoku/id6451124108/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | — |
| Size | 8 MB | 35 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Arjun Mahanti](https://appshunter.io/developer/1028057606) | [Jakub Schmidt](https://appshunter.io/developer/1895911394) |

## What reviewers say

### sudo

[App page](https://appshunter.io/ios/app/sudo-simple-sudoku/id6451124108)

Enjoy a classic Sudoku experience with a vibrant twist, offering both color and number-based puzzles. Track your performance with detailed statistics and maintain your progress with streaks. This ad-free game provides a clean and engaging way to play.

**Highlights:** Color and number Sudoku puzzles, Ad-free gameplay, Progress tracking, Streaks and statistics, Supports iPhone and iPad

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

**In-app purchases:** none


### Doublio

[App page](https://appshunter.io/ios/app/doublio-number-puzzle/id6764775662)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cascade Two: Ad Free | $1.99 | one-time |


## Frequently asked questions

### Is sudo free?

sudo costs $2.99, with no in-app purchases.

### Is Doublio free?

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

### Do sudo or Doublio have ads?

Doublio shows ads; sudo does not.

### Which is updated more often, sudo or Doublio?

sudo ships an update every 3 weeks, and Doublio weekly. Most recently, sudo was updated on November 3, 2026 and Doublio 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.*