Slot Shift vs Screw Machine
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Slot Shift
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Slot Shift is puzzle game inspired by popular swipe & merge mechanics. Beside classic numeric mode slot shifts allows for different game modes or playing on a bigger board. Check out the different modes and the full source code (Swift) for the current project to create a game and make it your own with your unique game mode idea.
Screw Machine
This game offers a unique twist on color-sorting puzzles. Instead of stacking, you release screws onto a spinning machine, timing your taps to thread each color into its matching plate. Fill all plates to win, but beware of overloading the rail and jamming the machine.
- Color-sorting screw puzzle
- Spinning machine gameplay
- Timing-based screw threading
- Level-based progression
- Special game-changing parts
- Offline play
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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
The clearest difference is in-app purchases: Slot Shift at none against Screw Machine's 10. Slot Shift also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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. Screw Machine sells 10 one-off in-app purchases. Slot Shift asks for nothing beyond the download.
Slot Shift ships an update every 2 days, Screw Machine every 4 days. The most recent releases landed on October 25, 2026 and November 8, 2026 respectively.
| Parameter | Slot Shift | Screw Machine |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (841 ratings) — better |
| Positive reviews | — | 57.1% of reviews |
| Number of ratings | — | 841 — better |
| Update frequency | Every 2 days — better | Every 4 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 430 MB |
| Age rating | 4+ | 4+ |
| Developer | Tobias Pott | Twist Games |
In-app purchases
Slot Shift
No in-app purchases
Screw Machine
- 1000 Coins$1.99
- Fail Offer$4.99
- 5000 Coins$7.99
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- No Ads$7.99
- Screw Pass$9.99
- Small Bundle$9.99
- No Ads Bundle$12.99
- 10000 Coins$14.99
- Medium Bundle$19.99
- Large Bundle$29.99
Questions
Is Slot Shift free?
Is Screw Machine free?
Do Slot Shift or Screw Machine have ads?
Which is updated more often, Slot Shift or Screw Machine?
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