# Stack Merge vs Keep Sorting

The clearest difference is update cadence: Stack Merge at every 2 weeks against Keep Sorting's every 6 months. Keep Sorting's advantage is iOS requirement (11.0 vs 13.0). 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.

Stack Merge ships an update every 2 weeks, Keep Sorting every 6 months. The most recent releases landed on September 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Stack Merge | Keep Sorting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (12 ratings)](https://appshunter.io/ios/app/keep-sorting/id6480009875/reviews)** |
| Number of ratings | — | **12** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Monetization | — | Ad-supported |
| Size | 103 MB | 102 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Rasel Hossain](https://appshunter.io/developer/1474211749) | [Rocketship Studios LLP](https://appshunter.io/developer/1456752660) |

## What reviewers say

### Stack Merge

[App page](https://appshunter.io/ios/app/stack-merge/id6478578678)

**Features:** macOS Compatibility

**In-app purchases:** none


### Keep Sorting

[App page](https://appshunter.io/ios/app/keep-sorting/id6480009875)

A casual puzzle game where players slide and release to throw stacks of colored disks. Match disks of the same color to sort them and collect them by matching ten or more. Enjoy a simple yet engaging sorting experience.

**Highlights:** Slide and release controls, Match same-colored disks, Collect disks by matching 10+, Simple gameplay mechanics, Engaging puzzle challenges

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stack Merge free?

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

### Is Keep Sorting free?

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

### Do Stack Merge or Keep Sorting have ads?

Both Stack Merge and Keep Sorting show ads.

### Which is updated more often, Stack Merge or Keep Sorting?

Stack Merge ships an update every 2 weeks, and Keep Sorting every 6 months. Most recently, Stack Merge was updated on September 24, 2026 and Keep Sorting on October 5, 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.*