# Merge Stack vs Needle in a Haystack!

The clearest difference is device support: Merge Stack at 3 against Needle in a Haystack!'s 1. Merge Stack also leads on iOS requirement (15.0 vs 17.0). On price, 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.

## The numbers

| Metric | Merge Stack | Needle in a Haystack! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | — |
| Size | 238 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kite Games](https://appshunter.io/developer/1878111512) | [Fumb Games Ltd.](https://appshunter.io/developer/1056916741) |

## What reviewers say

### Merge Stack

[App page](https://appshunter.io/ios/app/merge-stack-color-block/id6788709551)

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

**In-app purchases:** none


### Needle in a Haystack!

[App page](https://appshunter.io/ios/app/needle-in-a-haystack/id6819086585)

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

**In-app purchases:** none


## Frequently asked questions

### Is Merge Stack free?

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

### Is Needle in a Haystack! free?

Needle in a Haystack! is free to download, with no in-app purchases.

### Do Merge Stack or Needle in a Haystack! have ads?

Both Merge Stack and Needle in a Haystack! show ads.

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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.*