# Merge Sort vs Arrow Stack!

Merge Sort and Arrow Stack! are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Merge Sort ships an update every 4 days, Arrow Stack! every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Merge Sort | Arrow Stack! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/arrow-stack/id6781169463/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | — | Ad-supported |
| Size | 258 MB | 222 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Playmora LTD](https://appshunter.io/developer/1883984280) | [文晚 鲁](https://appshunter.io/developer/1885341239) |

## What reviewers say

### Merge Sort

[App page](https://appshunter.io/ios/app/merge-sort-associations-game/id6779106026)

**Features:** macOS Compatibility

**In-app purchases:** none


### Arrow Stack!

[App page](https://appshunter.io/ios/app/arrow-stack/id6781169463)

A colorful 3D puzzle game where you clear arrow blocks by tapping them in the correct order. Plan your moves carefully as each block can only move in its indicated direction. Progress through increasingly complex shapes and layered stacks.

**Highlights:** Tap-to-clear arrow block gameplay, Bright 3D voxel-style puzzle shapes, Logic, order, and spatial thinking levels, Relaxing casual pacing, New shapes and harder stacks

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Merge Sort free?

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

### Is Arrow Stack! free?

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

### Do Merge Sort or Arrow Stack! have ads?

Both Merge Sort and Arrow Stack! show ads.

### Which is updated more often, Merge Sort or Arrow Stack!?

Merge Sort ships an update every 4 days, and Arrow Stack! every 3 days. Most recently, Merge Sort was updated on October 31, 2026 and Arrow Stack! on October 31, 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.*