# Card Stacks! vs GemRush Puzzle Challenge

The clearest difference is iOS requirement: Card Stacks! at 12.0 against GemRush Puzzle Challenge's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Card Stacks! ships an update daily, GemRush Puzzle Challenge every 2 days. The most recent releases landed on October 3, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Card Stacks! | GemRush Puzzle Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 2 days |
| Size | 88 MB | 41 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Clap Clap Games](https://appshunter.io/developer/1435219840) | [Douglas Chinelo Fornaro](https://appshunter.io/developer/1862788092) |

## What reviewers say

### Card Stacks!

[App page](https://appshunter.io/ios/app/card-stacks/id6738748404)

**Features:** macOS Compatibility

**In-app purchases:** none


### GemRush Puzzle Challenge

[App page](https://appshunter.io/ios/app/gemrush-puzzle-challenge/id6763788273)

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

**In-app purchases:** none


## Frequently asked questions

### Is Card Stacks! free?

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

### Is GemRush Puzzle Challenge free?

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

### Do Card Stacks! or GemRush Puzzle Challenge have ads?

Both Card Stacks! and GemRush Puzzle Challenge show ads.

### Which is updated more often, Card Stacks! or GemRush Puzzle Challenge?

Card Stacks! ships an update daily, and GemRush Puzzle Challenge every 2 days. Most recently, Card Stacks! was updated on October 3, 2026 and GemRush Puzzle Challenge on September 28, 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.*