Wool Jam vs Screw Machine
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Wool Jam
Unravel colorful yarn balls, manage a spinning loop, and knit beautiful patchwork patterns. Solve relaxing logic puzzles by matching yarn colors to create adorable designs. Avoid getting stuck and use powerful boosters to overcome challenging levels.
- Unravel and match colorful yarn
- Manage spinning yarn loop
- Knit patchwork patterns
- Solve logic puzzles
- Overcome unique obstacles
- Use powerful boosters
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Welcome to Wool Jam, the most satisfying yarn loop puzzle game! Get ready to unravel colorful yarn balls, manage the spinning conveyor loop, and knit beautiful patchwork patterns. Experience the ultimate yarn fever as you slide, match, and stitch your way through relaxing logic challenges! How to Play: Tap and Send: Tap the yarn balls to unravel them and send them into the spinning yarn loop. Match Colors: Yarn travels on the conveyor until it matches the active color on your pattern. Knit the Pattern: Watch as the magic needle stitches the yarn directly into adorable animals, fruits, and cozy designs! Avoid the Jam: Plan your moves carefully! If the loop gets full, you'll be stuck with a ""Loop Jammed!"" and run out of moves. Endless Yarn Puzzles: With 100 levels to explore, every yarn game session offers a new brain teaser. You'll encounter unique obstacles that will test your strategy: Hidden & Covered Yarn: Uncover hidden layers and unlock colored covers to reach the yarn you need. Linked & Dual-Color Yarn: Plan ahead as you manage linked pairs and multi-colored threads. Frozen & Locked Yarn: Melt the ice or find the key to free up blocked colors to finish your knit out masterpiece! Powerful Boosters: Stuck on a tricky level? Use awesome boosters like the Magic Needle for direct stitching, the Color Unlocker to open new slots, or the Rainbow Wave for an unstoppable flow of unravel puzzle magic! Immerse yourself in a stress-free, ASMR-like knitting adventure. Download Wool Jam today and start your relaxing yarn puzzle journey!
Screw Machine
A unique color-sorting puzzle game where you manage screws on a spinning machine. Tap panels to release screws and match them to their colored plates before the rail overloads. Features special mechanics like mystery plates and gates for added challenge.
- Spinning machine sorting mechanic
- Color-matching screw puzzles
- Tap-to-release screw panels
- Special game-changing parts (mystery plates, gates)
- Offline play
- No timer or move counter
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Screw Machine is a color-sorting screw puzzle with a moving twist. Instead of stacking screws onto a bolt, you spill screws onto a spinning machine and let timing do the sorting. Tap a panel drop its screws onto the rail, and watch each color thread itself into its matching plate as the ring carries it around. Fill every plate to win. Overload the rail and the whole machine seizes up. HOW THE MACHINE WORKS • Tap a panel to loosen its screws onto the spinning rail • Four color plates sit around the ring — each one takes three screws of its color • As the machine turns, every screw passing its matching plate drives itself in • Fill a plate and it locks shut; the next color rolls up behind it • Clear all the plates to finish the level KEEP IT TURNING • The rail only holds so many screws, release colors with nowhere to go and it jams solid • Read the machine before you tap: open the panels whose colors have an open plate • No move counter, no timer, you only lose if the rail jams for good • Every level is a small sorting puzzle built to be untangled PARTS THAT CHANGE THE GAME • Mystery plates: The next color stays hidden behind a "?" until it rolls into place • Gates: Run a screw through and it splits into more • Tunnels: Feed a whole extra run of panels onto the board • Arrows: Panels that you can only unlock from a certain direction WHY IT'S HARD TO PUT DOWN • A fresh, tactile spin on the nuts and bolts puzzles you already love • One-tap, simple, with real timing and planning underneath • Hand-built levels that stay clever without ever feeling like work • Oddly satisfying to watch, screws driving home, plates locking in sequence • Play offline, anywhere, no wifi needed • Free to play, with lives that refill over time Loosen the screws. Run the machine. Sort every color.
Screenshots
Verdict
Wool Jam and Screw Machine both sit at 4.8 stars, but that hides the real split: 100% of Wool Jam's written reviews are positive against 50% of Screw Machine's. Wool Jam also leads on monetization model (ad-supported vs free with in-app purchases). Screw Machine's advantage is update cadence (every 4 days vs fortnightly). 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. Wool Jam sells 10 one-off in-app purchases and Screw Machine sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Wool Jam against 4.9 for Screw Machine. Both are backed by a comparable volume of ratings — 292 and 445 respectively. Written reviews are what separate them: 100% of Wool Jam's written reviews are positive against 50% of Screw Machine's.
Wool Jam ships an update fortnightly, Screw Machine every 4 days. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.
| Parameter | Wool Jam | Screw Machine |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (292 ratings) | 4.9 (445 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 292 | 445 — better |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 280 MB | 368 MB |
| Age rating | 4+ | 4+ |
| Developer | UNICO STUDIO | Twist Games |
Customer experience
Wool Jam
Screw Machine
In-app purchases
Wool Jam
- Starter Pack$0.99
- 1000 Coin$1.99
- Coin Offer$2.49
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- PiggyBank$2.99
- 5000 Coin$4.49
- Fail Offer$4.99
- 1Plus2$6.49
- Big Bundle$7.99
- 10000 Coin$8.49
- No ADs Pack$12.99
Screw Machine
- 1000 Coins$1.99
- Fail Offer$4.99
- 5000 Coins$7.99
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- No Ads$7.99
- Small Bundle$9.99
- No Ads Bundle$12.99
- 10000 Coins$14.99
- Medium Bundle$19.99
- Large Bundle$29.99
- Mega Bundle$49.99









