# Category Stack vs Toilet Brain Games

The clearest difference is in-app purchases: Toilet Brain Games at none against Category Stack's 7. Category Stack's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price, update cadence and ads there is nothing between them.

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

Category Stack ships an update every 3 weeks, Toilet Brain Games every 2 weeks. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Category Stack | Toilet Brain Games |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/toilet-brain-games-einstool/id6792126689/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 253 MB | 50 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Batuhan UCA](https://appshunter.io/developer/1895070189) | [Khawnan Management Solutions LLC](https://appshunter.io/developer/1747506010) |

## 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 |


### Toilet Brain Games

[App page](https://appshunter.io/ios/app/toilet-brain-games-einstool/id6792126689)

Engage in quick, daily brain games designed to improve memory, logic, focus, words, and trivia. Enjoy 21 different games that adapt to your skill level, track your progress, and collect unique cards, all playable offline without ads.

**Highlights:** 21 quick brain games, Daily rotating challenges, Adaptive skill levels, Offline play, No ads, Collectible cards, Progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Category Stack free?

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

### Is Toilet Brain Games free?

Toilet Brain Games is free to download, with no in-app purchases.

### Do Category Stack or Toilet Brain Games have ads?

Both Category Stack and Toilet Brain Games show ads.

### Which is updated more often, Category Stack or Toilet Brain Games?

Category Stack ships an update every 3 weeks, and Toilet Brain Games every 2 weeks. Most recently, Category Stack was updated on October 1, 2026 and Toilet Brain Games on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*