# Sorting Stacks vs Causality Puzzle

The clearest difference is update cadence: Sorting Stacks at fortnightly against Causality Puzzle's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Sorting Stacks ships an update fortnightly, Causality Puzzle every 2 months. The most recent releases landed on October 12, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Sorting Stacks | Causality Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (49 ratings)](https://appshunter.io/ios/app/sorting-stacks/id6751955027/reviews)** | — |
| Number of ratings | **49** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 228 MB | 76 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ela Game](https://appshunter.io/developer/1536955498) | [Gurgen Arustamyan](https://appshunter.io/developer/1884835827) |

## What reviewers say

### Sorting Stacks

[App page](https://appshunter.io/ios/app/sorting-stacks/id6751955027)

A fast-paced color-matching puzzle game where players launch colored characters to smash matching blocks. Strategize your launches to clear the grid before the timer runs out and avoid filling the board.

**Highlights:** Color-coded character launching, Matching block-smashing, Timed gameplay, Strategy-based challenges, Fast-paced action

**Features:** macOS Compatibility

**In-app purchases:** none


### Causality Puzzle

[App page](https://appshunter.io/ios/app/causality-puzzle/id6760533588)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sorting Stacks free?

Sorting Stacks is free to download, with no in-app purchases.

### Is Causality Puzzle free?

Causality Puzzle is free to download, with no in-app purchases.

### Do Sorting Stacks or Causality Puzzle have ads?

Both Sorting Stacks and Causality Puzzle show ads.

### Which is updated more often, Sorting Stacks or Causality Puzzle?

Sorting Stacks ships an update fortnightly, and Causality Puzzle every 2 months. Most recently, Sorting Stacks was updated on October 12, 2026 and Causality Puzzle on October 22, 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.*