# Stack Puzzle Pattern vs Riverdoku

The clearest difference is in-app purchases: Stack Puzzle Pattern at none against Riverdoku's 1. Stack Puzzle Pattern also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Riverdoku sells 1 one-off in-app purchase. Stack Puzzle Pattern asks for nothing beyond the download.

Stack Puzzle Pattern ships an update every 5 days, Riverdoku every 2 weeks. The most recent releases landed on October 6, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Stack Puzzle Pattern | Riverdoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stack-puzzle-pattern/id6502073332/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 454 MB | 105 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Trinh Tai](https://appshunter.io/developer/1567231258) | [Muntean Holding AS](https://appshunter.io/developer/1748099272) |

## What reviewers say

### Stack Puzzle Pattern

[App page](https://appshunter.io/ios/app/stack-puzzle-pattern/id6502073332)

Engage your mind with a color-matching puzzle game. Merge, stack, and match hexagonal tiles to create spectacular color bursts and overcome challenging brain teasers. Enjoy relaxing gameplay with satisfying sound effects.

**Highlights:** Color matching puzzles, Hexagon tile stacking, Challenging brain teasers, Power-ups and boosters, Relaxing ASMR sound effects, Strategic gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Riverdoku

[App page](https://appshunter.io/ios/app/riverdoku-logic-puzzle-games/id6815145909)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Riverdoku Premium | $12.99 | one-time |


## Frequently asked questions

### Is Stack Puzzle Pattern free?

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

### Is Riverdoku free?

Riverdoku is free to download, with in-app purchases available.

### Do Stack Puzzle Pattern or Riverdoku have ads?

Both Stack Puzzle Pattern and Riverdoku show ads.

### Which is updated more often, Stack Puzzle Pattern or Riverdoku?

Stack Puzzle Pattern ships an update every 5 days, and Riverdoku every 2 weeks. Most recently, Stack Puzzle Pattern was updated on October 6, 2026 and Riverdoku on October 20, 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.*