Comparison

Screw Machine vs Buzzy Bus!

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Buzzy Bus!

Engage in a visually soothing puzzle game where you tap pixel blocks to clear traffic jams. Strategically match colors to fill buses and collect vibrant pixel art.

Highlights
  • Satisfying pixel streams
  • Clever traffic strategy
  • Pixel art collection
  • Brain-boosting fun
  • Color-matching puzzles
  • Gridlock solutions
Features
Read full description

Buzzy Bus! blends ultra-soothing pixel flows with addictive bus jam strategy. Tap pixel blocks, clear jammed lanes, and watch vibrant pixels stream smoothly into color-matching buses! Why you'll love Buzzy Bus! - Satisfying Pixel Streams: Watch liquid-smooth pixel flows fly seamlessly from the board into matching buses. Pure visual ASMR! - Clever Traffic Strategy: Manage limited parking slots and plan moves to solve tricky gridlocks. - Pixel Art Collection: Deconstruct hundreds of colorful creations, from animals to landscapes. - Brain-Boosting Fun: Easy to learn, deeply satisfying to master, and packed with helpful boosters. Hop on board, clear the jam, and master the most satisfying puzzle today!

Screenshots

Screw Machine4 screens
Buzzy Bus!4 screens

Verdict

The call

The clearest difference is ratings volume: Screw Machine at 445 against Buzzy Bus!'s 1. Screw Machine also leads on iOS requirement (15.0 vs 17.0). On price, rating, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Screw Machine sells 10 one-off in-app purchases and Buzzy Bus! sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Screw Machine against 5.0 for Buzzy Bus!. That said, the two scores are not equally well evidenced: Screw Machine has 445 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Screw Machine ships an update every 4 days, Buzzy Bus! every 2 days. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Screw Machine versus Buzzy Bus!: the parameters behind the verdict, then further details
ParameterScrew MachineBuzzy Bus!
PriceFreeFree
Rating4.9 (445 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings445 — better1
Update frequencyEvery 4 daysEvery 2 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size368 MB319 MB
Age rating4+4+
DeveloperTwist GamesDino Studios Limited

Customer experience

Screw Machine

All ratings445 ratings
Positive98.7%
Neutral0.2%
Negative1.1%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Buzzy Bus!

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Screw Machine

One-time10
  • 1000 Coins$1.99
  • Fail Offer$4.99
  • 5000 Coins$7.99
Show 7 more
  • 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
10 purchases

Buzzy Bus!

One-time10
  • Coin Package$0.99
  • Coin Package$1.99
  • Support Kit Package$2.99
Show 7 more
  • Remove Ads Package$7.99
  • Coin Package$7.99
  • No Ads Bundle$9.99
  • Coin Package$14.99
  • Coin Package$29.99
  • Coin Package$59.99
  • Coin Package$99.99

Questions

Is Screw Machine free?
Screw Machine is free to download, with in-app purchases available.
Is Buzzy Bus! free?
Buzzy Bus! is free to download, with in-app purchases available.
Which has better reviews, Screw Machine or Buzzy Bus!?
Buzzy Bus! is rated higher. Screw Machine averages 4.9 out of 5 from 445 ratings, while Buzzy Bus! averages 5.0 from 1 ratings.
Do Screw Machine or Buzzy Bus! have ads?
Both Screw Machine and Buzzy Bus! show ads.
Which is updated more often, Screw Machine or Buzzy Bus!?
Screw Machine ships an update every 4 days, and Buzzy Bus! every 2 days. Most recently, Screw Machine was updated on October 20, 2026 and Buzzy Bus! on October 7, 2026.

Other comparisons