# Clue Stack vs Category Stack

The clearest difference is in-app purchases: Clue Stack at none against Category Stack's 7. Clue Stack also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Category Stack sells 7 one-off in-app purchases. Clue Stack asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 20, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Clue Stack | Category Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 243 MB | 253 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GAMEPROMO CO., LIMITED](https://appshunter.io/developer/1619749576) | [Batuhan UCA](https://appshunter.io/developer/1895070189) |

## What reviewers say

### Clue Stack

[App page](https://appshunter.io/ios/app/clue-stack/id6775158548)

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

**In-app purchases:** none


### 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 Clue Stack free?

Clue Stack is free to download, with no in-app purchases.

### Is Category Stack free?

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

### Do Clue Stack or Category Stack have ads?

Both Clue Stack and Category Stack show ads.

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

Clue Stack ships an update every 3 weeks, and Category Stack every 3 weeks. Most recently, Clue Stack was updated on September 20, 2026 and Category Stack on September 13, 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.*