# Happy Stacking Fun vs Twirl Tower

The clearest difference is update cadence: Twirl Tower at every 4 days against Happy Stacking Fun's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Happy Stacking Fun ships an update fortnightly, Twirl Tower every 4 days. The most recent releases landed on September 11, 2026 and December 18, 2025 respectively.

## The numbers

| Metric | Happy Stacking Fun | Twirl Tower |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 177 MB | 136 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [LanGang Zhang](https://appshunter.io/developer/1740225725) | [RISE INFINITY INTERACTIVE PRIVATE LIMITED](https://appshunter.io/developer/1752099173) |

## What reviewers say

### Happy Stacking Fun

[App page](https://appshunter.io/ios/app/happy-stacking-fun/id6483686011)

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

**In-app purchases:** none


### Twirl Tower

[App page](https://appshunter.io/ios/app/twirl-tower/id6560104410)

**In-app purchases:** none


## Frequently asked questions

### Is Happy Stacking Fun free?

Happy Stacking Fun is free to download, with no in-app purchases.

### Is Twirl Tower free?

Twirl Tower is free to download, with no in-app purchases.

### Do Happy Stacking Fun or Twirl Tower have ads?

Both Happy Stacking Fun and Twirl Tower show ads.

### Which is updated more often, Happy Stacking Fun or Twirl Tower?

Happy Stacking Fun ships an update fortnightly, and Twirl Tower every 4 days. Most recently, Happy Stacking Fun was updated on September 11, 2026 and Twirl Tower on December 18, 2025.

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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.*