# Cup Color Stack vs Watermelon Sudoku

The clearest difference is ads: Watermelon Sudoku at none against Cup Color Stack's shown. On price, update cadence, 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.

Cup Color Stack ships an update every 2 days, Watermelon Sudoku every 4 days. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Cup Color Stack | Watermelon Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (40 ratings)](https://appshunter.io/ios/app/cup-color-stack-sorting-jam/id6783588458/reviews)** | — |
| Number of ratings | **40** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | Ad-supported | — |
| Size | 271 MB | 22 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shycheese](https://appshunter.io/developer/1866477580) | [CodeNet](https://appshunter.io/developer/6788296420) |

## What reviewers say

### Cup Color Stack

[App page](https://appshunter.io/ios/app/cup-color-stack-sorting-jam/id6783588458)

Engage in a relaxing sorting puzzle game where you match and stack colorful cups. Plan your moves carefully to clear the board and progress through increasingly challenging levels with fun obstacles and timed challenges.

**Highlights:** Match and stack colorful cups, Satisfying sorting ritual, Brain-activating puzzles, Challenging levels with obstacles, Timed challenges, Power-ups for extra space, Clean art style and soft colors

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

**In-app purchases:** none


### Watermelon Sudoku

[App page](https://appshunter.io/ios/app/watermelon-sudoku/id6789468492)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cup Color Stack free?

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

### Is Watermelon Sudoku free?

Watermelon Sudoku is free to download, with no in-app purchases.

### Do Cup Color Stack or Watermelon Sudoku have ads?

Cup Color Stack shows ads; Watermelon Sudoku does not.

### Which is updated more often, Cup Color Stack or Watermelon Sudoku?

Cup Color Stack ships an update every 2 days, and Watermelon Sudoku every 4 days. Most recently, Cup Color Stack was updated on September 18, 2026 and Watermelon Sudoku on September 23, 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.*