# Mentarapp vs Nook

The clearest difference is update cadence: Nook at every 3 days against Mentarapp's every 2 months. Mentarapp's advantage is iOS requirement (15.1 vs 18.0). 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.

Mentarapp ships an update every 2 months, Nook every 3 days. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Mentarapp | Nook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 34 MB | 16 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Adrian Serrano Mota](https://appshunter.io/developer/1864792901) | [KANG SEUNGHYUN](https://appshunter.io/developer/6797773160) |

## What reviewers say

### Mentarapp

[App page](https://appshunter.io/ios/app/mentarapp/id6757170861)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nook

[App page](https://appshunter.io/ios/app/nook-read-write-own/id6797773158)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mentarapp free?

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

### Is Nook free?

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

### Do Mentarapp or Nook have ads?

Neither Mentarapp nor Nook shows ads.

### Which is updated more often, Mentarapp or Nook?

Mentarapp ships an update every 2 months, and Nook every 3 days. Most recently, Mentarapp was updated on September 30, 2026 and Nook on October 10, 2026.

---

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