# Spool Out vs Stacky Boom!

The clearest difference is in-app purchases: Stacky Boom! at none against Spool Out's 10. Stacky Boom! also leads on update cadence (daily vs every 2 days). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Spool Out sells 10 one-off in-app purchases. Stacky Boom! asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Spool Out against 5.0 for Stacky Boom!. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Spool Out ships an update every 2 days, Stacky Boom! daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Spool Out | Stacky Boom! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/spool-out/id6770544533/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/stacky-boom/id6778777057/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 days | **Daily** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 143 MB | 127 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Upcasual Games](https://appshunter.io/developer/1872671524) | [Two4Tea](https://appshunter.io/developer/1437128903) |

## What reviewers say

### Spool Out

[App page](https://appshunter.io/ios/app/spool-out/id6770544533)

Untangle threads by tapping spools in the correct sequence to wind them neatly. This puzzle game starts easy but quickly introduces complex tangles and overlaps, challenging your strategic thinking with simple one-tap controls. Enjoy satisfying animations and a clean design as you progress through increasingly difficult levels.

**Highlights:** One-tap gameplay, Increasingly tricky levels, Satisfying thread-winding animations, Clean, minimal design, Simple rules, real challenge

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Bundle 50% Off | $4.49 | one-time |
| No Ads Bundle 50% Off | $4.99 | one-time |
| Small Bundle 25% Off | $6.99 | one-time |
| Small Bundle | $8.99 | one-time |
| Medium Bundle 50% Off | $8.99 | one-time |
| Medium Bundle 25% Off | $13.99 | one-time |
| Medium Bundle | $17.99 | one-time |
| Ultra Bundle 50% Off | $19.99 | one-time |
| Ultra Bundle 25% Off | $29.99 | one-time |
| Ultra Bundle | $39.99 | one-time |


### Stacky Boom!

[App page](https://appshunter.io/ios/app/stacky-boom/id6778777057)

A calming puzzle game where you collect stacks and shoot targets to complete levels. It offers a satisfying brain teaser with simple rules and unlimited play. Enjoy pure logic fun and a meditative experience anytime, anywhere.

**Highlights:** Collect stacks, Shoot targets, Train your brain, Play offline, Unlimited play, Minimalist design

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

**In-app purchases:** none


## Frequently asked questions

### Is Spool Out free?

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

### Is Stacky Boom! free?

Stacky Boom! is free to download, with no in-app purchases.

### Which has better reviews, Spool Out or Stacky Boom!?

Spool Out and Stacky Boom! are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Spool Out or Stacky Boom! have ads?

Both Spool Out and Stacky Boom! show ads.

### Which is updated more often, Spool Out or Stacky Boom!?

Spool Out ships an update every 2 days, and Stacky Boom! daily. Most recently, Spool Out was updated on November 5, 2026 and Stacky Boom! on October 31, 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.*