# Pixel Stacker vs Mnemonics Pro

The clearest difference is price: Pixel Stacker at Free against Mnemonics Pro's $0.99. Pixel Stacker also leads on iOS requirement (11.0 vs 17.0). Mnemonics Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Pixel Stacker is free to download; Mnemonics Pro costs $0.99 up front. Pixel Stacker sells 1 one-off in-app purchase. Mnemonics Pro asks for nothing beyond the download.

## The numbers

| Metric | Pixel Stacker | Mnemonics Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Size | 56 MB | 12 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Emerson Rosa](https://appshunter.io/developer/1702335741) | [Nishat Majid](https://appshunter.io/developer/1727207034) |

## What reviewers say

### Pixel Stacker

[App page](https://appshunter.io/ios/app/pixel-stacker/id6463541438)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


### Mnemonics Pro

[App page](https://appshunter.io/ios/app/mnemonics-pro/id6483685397)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pixel Stacker free?

Pixel Stacker is free to download, with in-app purchases available.

### Is Mnemonics Pro free?

Mnemonics Pro costs $0.99, with no in-app purchases.

### Do Pixel Stacker or Mnemonics Pro have ads?

Pixel Stacker shows ads; Mnemonics Pro does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*