# Happy Stack Equilibrium vs Tower Puzzle

The clearest difference is update cadence: Tower Puzzle at every 5 weeks against Happy Stack Equilibrium's every 76 months. Tower Puzzle also leads on iOS requirement (10.0 vs 15.0). 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 Stack Equilibrium ships an update every 76 months, Tower Puzzle every 5 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Happy Stack Equilibrium | Tower Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 76 months | **Every 5 weeks** |
| Size | 75 MB | 131 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Francesc Navarro Machio](https://appshunter.io/developer/488794379) | [Elevatis SA](https://appshunter.io/developer/1511388834) |

## What reviewers say

### Happy Stack Equilibrium

[App page](https://appshunter.io/ios/app/happy-stack-equilibrium/id1519015365)

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

**In-app purchases:** none


### Tower Puzzle

[App page](https://appshunter.io/ios/app/tower-puzzle-be-careful/id1526450557)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Happy Stack Equilibrium free?

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

### Is Tower Puzzle free?

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

### Do Happy Stack Equilibrium or Tower Puzzle have ads?

Neither Happy Stack Equilibrium nor Tower Puzzle shows ads.

### Which is updated more often, Happy Stack Equilibrium or Tower Puzzle?

Happy Stack Equilibrium ships an update every 76 months, and Tower Puzzle every 5 weeks. Most recently, Happy Stack Equilibrium was updated on November 3, 2026 and Tower Puzzle on November 3, 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.*