Spool Out vs Stacky Boom!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Spool Out
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.
- One-tap gameplay
- Increasingly tricky levels
- Satisfying thread-winding animations
- Clean, minimal design
- Simple rules, real challenge
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Threads are tangled. Spools are waiting. Tap them in the right order to wind everything back up clean. It starts simple — a few threads, a few spools, no sweat. But the tangles get trickier, the overlaps pile up, and suddenly you're staring at the screen trying to figure out which spool goes first. One tap. One thread at a time. Get the order wrong and you're stuck. FEATURES · One-tap gameplay — easy to learn, hard to master · A lot of increasingly tricky levels · Satisfying thread-winding animations · Clean, minimal design Simple rules. Real challenge. Good luck.
Stacky Boom!
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.
- Collect stacks
- Shoot targets
- Train your brain
- Play offline
- Unlimited play
- Minimalist design
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Stacky boom! Everyone's Talking About Ready to flex your brain and unwind at the same time? Collect stacks and shoot, the clever and calming puzzle game that’s taken the world by storm. The rules are simple, but the challenge is real: • Collect as many stack as possible • Shoot to targets to complete the level Each level is a satisfying brain teaser that will leave you wanting just one more. Whether you’re a puzzle pro or just looking for a relaxing mental workout, Lines is the perfect daily challenge. Just pure logic fun. • Train your brain • Play offline – no Wi-Fi needed • Unlimited play – no lives, no waiting • Clean, minimalist design for maximum focus • Perfect for a calm, meditative moment Download Stacky Boom! now and see how far your logic can take you
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Spool Out | Stacky Boom! |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 days | Daily — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 143 MB | 127 MB |
| Age rating | 4+ | 4+ |
| Developer | Upcasual Games | Two4Tea |
In-app purchases
Spool Out
- Small Bundle 50% Off$4.49
- No Ads Bundle 50% Off$4.99
- Small Bundle 25% Off$6.99
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- Small Bundle$8.99
- Medium Bundle 50% Off$8.99
- Medium Bundle 25% Off$13.99
- Medium Bundle$17.99
- Ultra Bundle 50% Off$19.99
- Ultra Bundle 25% Off$29.99
- Ultra Bundle$39.99
Stacky Boom!
No in-app purchases
