# Unscrew 3D vs STACKO

The clearest difference is update cadence: Unscrew 3D at weekly against STACKO's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Unscrew 3D sells 9 one-off in-app purchases and STACKO sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unscrew 3D ships an update weekly, STACKO every 3 weeks. The most recent releases landed on September 21, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Unscrew 3D | STACKO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (219 ratings)](https://appshunter.io/ios/app/unscrew-3d-pin-jam-puzzle/id6743380442/reviews)** | — |
| Number of ratings | **219** | — |
| Positive reviews | 36.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 900 MB | 14 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sonat Joint Stock Company](https://appshunter.io/developer/1473232089) | [Djordje Subotic](https://appshunter.io/developer/1890672208) |

## What reviewers say

### Unscrew 3D

[App page](https://appshunter.io/ios/app/unscrew-3d-pin-jam-puzzle/id6743380442)

Engage your mind with this 3D puzzle game where you unscrew colorful pins and sort screws into their matching boxes. Each level presents a unique brain-teasing challenge that requires logic and strategy to master.

**Highlights:** Brain-teasing 3D puzzles, Colorful screw sorting, Relaxing yet challenging gameplay, Simple tap and drag controls, Hundreds of levels

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold 1 | $2.99 | one-time |
| Safety net Bundle | $6.99 | one-time |
| No ads | $7.99 | one-time |
| Gold 2 | $7.99 | one-time |
| No ads, Just fun | $12.99 | one-time |
| Gold 3 | $12.99 | one-time |
| Gold 4 | $37.99 | one-time |
| Gold 5 | $69.99 | one-time |
| Gold 6 | $99.99 | one-time |

**What reviewers like**

- 👍 Great game
- 🚀 Easy to play

**What reviewers complain about**

- 🤬 Too many ads
- ⏱️ Ads interrupt gameplay
- 🔊 No sound option

**Reported bugs**

- Ads play over audiobooks
- Ads repeat constantly

**Requested features**

- Ad-free play option
- Ability to purchase ad removal


### STACKO

[App page](https://appshunter.io/ios/app/stacko-stack-tower-blocks/id6761677488)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Unscrew 3D free?

Unscrew 3D is free to download, with in-app purchases available.

### Is STACKO free?

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

### Do Unscrew 3D or STACKO have ads?

Both Unscrew 3D and STACKO show ads.

### Which is updated more often, Unscrew 3D or STACKO?

Unscrew 3D ships an update weekly, and STACKO every 3 weeks. Most recently, Unscrew 3D was updated on September 21, 2026 and STACKO on September 12, 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.*