# Screw Machine vs Buzzy Bus!

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.

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.

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.

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.

## The numbers

| Metric | Screw Machine | Buzzy Bus! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (445 ratings)](https://appshunter.io/ios/app/screw-machine/id6801033982/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/buzzy-bus/id6811744016/reviews)** |
| Number of ratings | **445** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 368 MB | 319 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Twist Games](https://appshunter.io/developer/1854442218) | [Dino Studios Limited](https://appshunter.io/developer/6783614792) |

## What reviewers say

### Screw Machine

[App page](https://appshunter.io/ios/app/screw-machine/id6801033982)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 Coins | $1.99 | one-time |
| Fail Offer | $4.99 | one-time |
| 5000 Coins | $7.99 | one-time |
| No Ads | $7.99 | one-time |
| Small Bundle | $9.99 | one-time |
| No Ads Bundle | $12.99 | one-time |
| 10000 Coins | $14.99 | one-time |
| Medium Bundle | $19.99 | one-time |
| Large Bundle | $29.99 | one-time |
| Mega Bundle | $49.99 | one-time |


### Buzzy Bus!

[App page](https://appshunter.io/ios/app/buzzy-bus/id6811744016)

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:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Package | $0.99 | one-time |
| Coin Package | $1.99 | one-time |
| Support Kit Package | $2.99 | one-time |
| Remove Ads Package | $7.99 | one-time |
| Coin Package | $7.99 | one-time |
| No Ads Bundle | $9.99 | one-time |
| Coin Package | $14.99 | one-time |
| Coin Package | $29.99 | one-time |
| Coin Package | $59.99 | one-time |
| Coin Package | $99.99 | one-time |


## Frequently asked 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.

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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.*