# Happy Stacking Fun vs Buttons Color Sort 3D

The clearest difference is ads: Buttons Color Sort 3D at none against Happy Stacking Fun's shown. On price, update cadence, 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, Buttons Color Sort 3D every 3 weeks. The most recent releases landed on September 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Happy Stacking Fun | Buttons Color Sort 3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 177 MB | 52 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [LanGang Zhang](https://appshunter.io/developer/1740225725) | [Muhammad Saqib](https://appshunter.io/developer/1628308754) |

## 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


### Buttons Color Sort 3D

[App page](https://appshunter.io/ios/app/buttons-color-sort-3d-fun-sort/id6673897643)

**Features:** macOS Compatibility

**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 Buttons Color Sort 3D free?

Buttons Color Sort 3D is free to download, with no in-app purchases.

### Do Happy Stacking Fun or Buttons Color Sort 3D have ads?

Happy Stacking Fun shows ads; Buttons Color Sort 3D does not.

### Which is updated more often, Happy Stacking Fun or Buttons Color Sort 3D?

Happy Stacking Fun ships an update fortnightly, and Buttons Color Sort 3D every 3 weeks. Most recently, Happy Stacking Fun was updated on September 11, 2026 and Buttons Color Sort 3D on September 9, 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.*