# Cat Stack vs Pengublo

The clearest difference is update cadence: Cat Stack at every 3 months against Pengublo's every 32 months. Pengublo's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Cat Stack sells 6 one-off in-app purchases and Pengublo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Cat Stack ships an update every 3 months, Pengublo every 32 months. The most recent releases landed on September 4, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Cat Stack | Pengublo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (889 ratings)](https://appshunter.io/ios/app/cat-stack/id1398886906/reviews)** | — |
| Number of ratings | **889** | — |
| Positive reviews | 79.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 32 months |
| Monetization | Free with in-app purchases | — |
| Size | 236 MB | 10 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Full Fat Productions Ltd](https://appshunter.io/developer/374306144) | [MMXIX.CZ s.r.o.](https://appshunter.io/developer/1553030810) |

## What reviewers say

### Cat Stack

[App page](https://appshunter.io/ios/app/cat-stack/id1398886906)

Rotate and position various cats to build the tallest possible tower. Be careful, as a fallen cat means game over. Discover and collect over 70 unique cat breeds, each with different effects that can impact your tower's stability.

**Highlights:** Stack cats to build towers, Physics-based gameplay, Collect over 70 cat breeds, Cats have unique effects, High score challenges

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CS Gem Pack 1 | $0.99 | one-time |
| Bundle Pack 1 | $4.99 | one-time |
| CS Gem Pack 2 | $4.99 | one-time |
| Remove Ads | $5.99 | one-time |
| Bundle Pack 2 | $9.99 | one-time |
| CS Gem Pack 3 | $9.99 | one-time |

**What reviewers like**

- 🐱 Cute cats
- 🕹️ Fun and addictive gameplay
- 💡 Unique concept
- 👍 Simple and easy to play
- 🕰️ Good for passing time

**What reviewers complain about**

- 🔍 Lack of variety in cat shapes
- 🔊 Sound issues and audio cutting out
- 📺 Too many ads, disruptive to gameplay
- 🔒 Paid version still has ads

**Reported bugs**

- Crashes and freezes
- Unresponsive controls
- Ads not loading properly

**Requested features**

- More cat variety
- Pause button
- Offline play mode
- Customization options


### Pengublo

[App page](https://appshunter.io/ios/app/pengublo/id1553030808)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Cat Stack free?

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

### Is Pengublo free?

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

### Do Cat Stack or Pengublo have ads?

Both Cat Stack and Pengublo show ads.

### Which is updated more often, Cat Stack or Pengublo?

Cat Stack ships an update every 3 months, and Pengublo every 32 months. Most recently, Cat Stack was updated on September 4, 2026 and Pengublo on September 17, 2026.

---

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