# Sudok vs StacKo

The clearest difference is ads: Sudok at none against StacKo's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Sudok sells 1 one-off in-app purchase and StacKo sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 22, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Sudok | StacKo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sudok-hue/id6624314045/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 106 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Odubu Design Inc.](https://appshunter.io/developer/1744709194) | [1PixelStudio Co.](https://appshunter.io/developer/1046496163) |

## What reviewers say

### Sudok

[App page](https://appshunter.io/ios/app/sudok-hue/id6624314045)

This game reimagines Sudoku with vibrant colors instead of numbers, offering a visually engaging puzzle experience. It features varied difficulty levels, a sleek design, and helpful hints. Enjoy offline play and auto-save functionality.

**Highlights:** Color-based Sudoku gameplay, Varied difficulty levels, Sleek and intuitive interface, In-game hints, Light and dark themes, Offline play, Auto-save progress

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Levels | $3.99 | one-time |


### StacKo

[App page](https://appshunter.io/ios/app/stacko-relaxing-sort-colors/id6670157008)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate low price. | $4.99 | one-time |
| Donate medium price. | $9.99 | one-time |
| Donate high price. | $19.99 | one-time |


## Frequently asked questions

### Is Sudok free?

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

### Is StacKo free?

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

### Do Sudok or StacKo have ads?

StacKo shows ads; Sudok does not.

### Which is updated more often, Sudok or StacKo?

Sudok ships an update weekly, and StacKo weekly. Most recently, Sudok was updated on October 22, 2026 and StacKo on October 4, 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.*