# Category Stack vs Picture Sort

The clearest difference is update cadence: Picture Sort at weekly against Category Stack's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Category Stack sells 7 one-off in-app purchases and Picture Sort sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Category Stack ships an update every 3 weeks, Picture Sort weekly. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Category Stack | Picture Sort |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 253 MB | 470 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Batuhan UCA](https://appshunter.io/developer/1895070189) | [NMB TECHNOLOGY AND SOLUTION JOINT STOCK COMPANY](https://appshunter.io/developer/1696226149) |

## What reviewers say

### 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 |


### Picture Sort

[App page](https://appshunter.io/ios/app/picture-sort-match-puzzle/id6786509180)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Retry Pack | $0.99 | one-time |
| SHOP COIN 1 | $0.99 | one-time |
| Shop Coin 2 | $1.99 | one-time |
| Shop Coin 3 | $2.99 | one-time |
| Shop Coin 4 | $3.99 | one-time |
| Shop Coin 5 | $4.99 | one-time |
| STARTER PACK | $4.99 | one-time |
| Shop Coin 6 | $9.99 | one-time |
| NO ADS BUNDLE | $19.99 | one-time |


## Frequently asked questions

### Is Category Stack free?

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

### Is Picture Sort free?

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

### Do Category Stack or Picture Sort have ads?

Both Category Stack and Picture Sort show ads.

### Which is updated more often, Category Stack or Picture Sort?

Category Stack ships an update every 3 weeks, and Picture Sort weekly. Most recently, Category Stack was updated on November 5, 2026 and Picture Sort on November 10, 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.*