# Pixel vs Category Stack

The clearest difference is price: Category Stack at Free against Pixel's $1.99. Pixel's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

Category Stack is free to download; Pixel costs $1.99 up front. Pixel sells 1 one-off in-app purchase and Category Stack sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Pixel ships an update every 6 weeks, Category Stack every 3 weeks. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Pixel | Category Stack |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 30 MB | 253 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Hergert](https://appshunter.io/developer/1861706247) | [Batuhan UCA](https://appshunter.io/developer/1895070189) |

## What reviewers say

### Pixel

[App page](https://appshunter.io/ios/app/pixel-the-challenge/id6785946309)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game (80 Levels) | $4.99 | one-time |


### Category Stack

[App page](https://appshunter.io/ios/app/category-stack/id6785968480)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold Pack 1 | $1.99 | one-time |
| Gold Pack 2 | $7.99 | one-time |
| No Ads Pack | $7.99 | one-time |
| Gold Pack 3 | $14.99 | one-time |
| Gold Pack 4 | $29.99 | one-time |
| Gold Pack 5 | $54.99 | one-time |
| Gold Pack 6 | $99.99 | one-time |


## Frequently asked questions

### Is Pixel free?

Pixel costs $1.99, and also offers in-app purchases.

### Is Category Stack free?

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

### Do Pixel or Category Stack have ads?

Category Stack shows ads; Pixel does not.

### Which is updated more often, Pixel or Category Stack?

Pixel ships an update every 6 weeks, and Category Stack every 3 weeks. Most recently, Pixel was updated on October 6, 2026 and Category Stack on October 17, 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.*