# Fallen Screw vs Cup Stack Flow

The clearest difference is ads: Fallen Screw at none against Cup Stack Flow's shown. Fallen Screw also leads on update cadence (every 3 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fallen Screw ships an update every 3 days, Cup Stack Flow fortnightly. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Fallen Screw | Cup Stack Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/fallen-screw/id6720728479/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free | — |
| Size | 229 MB | 196 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ZiNKY OYUN YAZILIM ANONiM SiRKETi](https://appshunter.io/developer/1543346364) | [Mehmet Fatih Sahin](https://appshunter.io/developer/1700697055) |

## What reviewers say

### Fallen Screw

[App page](https://appshunter.io/ios/app/fallen-screw/id6720728479)

Engage in a unique layer-clearing puzzle game. Tap and send boxes to your inventory, then strategically use them to unlock mechanisms and reveal hidden plates. Every decision counts as you carefully manage your space to clear the board.

**Highlights:** Layer-clearing puzzle gameplay, Tap and send boxes, Strategic lock release, Uncover hidden plates, Slot management, Step-by-step board clearing

**Features:** macOS Compatibility

**In-app purchases:** none


### Cup Stack Flow

[App page](https://appshunter.io/ios/app/cup-stack-flow/id6762182560)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Fallen Screw free?

Fallen Screw is free to download, with no in-app purchases.

### Is Cup Stack Flow free?

Cup Stack Flow is free to download, with no in-app purchases.

### Do Fallen Screw or Cup Stack Flow have ads?

Cup Stack Flow shows ads; Fallen Screw does not.

### Which is updated more often, Fallen Screw or Cup Stack Flow?

Fallen Screw ships an update every 3 days, and Cup Stack Flow fortnightly. Most recently, Fallen Screw was updated on October 1, 2026 and Cup Stack Flow 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.*