# Productivity Matrix vs Nook

The clearest difference is device support: Productivity Matrix at 3 against Nook's 1. Productivity Matrix also leads on iOS requirement (13.0 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 | Productivity Matrix | Nook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 27 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thrivikram G R](https://appshunter.io/developer/1890656155) | [TTB INTERNATIONAL LLC](https://appshunter.io/developer/1896762162) |

## What reviewers say

### Productivity Matrix

[App page](https://appshunter.io/ios/app/productivity-matrix/id6761648813)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nook

[App page](https://appshunter.io/ios/app/nook-focus-and-pomodoro-timer/id6803731288)

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

**In-app purchases:** none


## Frequently asked questions

### Is Productivity Matrix free?

Productivity Matrix is free to download, with no in-app purchases.

### Is Nook free?

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

### Do Productivity Matrix or Nook have ads?

Neither Productivity Matrix nor Nook shows 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.*