# 知書Nowbook vs myLibrary Master

The clearest difference is in-app purchases: myLibrary Master at none against 知書Nowbook's 8. 知書Nowbook's advantage is update cadence (every 2 months vs every 14 months) and iOS requirement (11.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. 知書Nowbook sells 8 one-off in-app purchases. myLibrary Master asks for nothing beyond the download.

知書Nowbook ships an update every 2 months, myLibrary Master every 14 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 知書Nowbook | myLibrary Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/nowbook/id1446373183/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 14 months |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 31 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SUEP](https://appshunter.io/developer/660144353) | [myID Limited](https://appshunter.io/developer/553443758) |

## What reviewers say

### 知書Nowbook

[App page](https://appshunter.io/ios/app/nowbook/id1446373183)

This platform offers a comprehensive reading experience, combining e-books, audiobooks, courses, and video content. It features a vast collection of Chinese literature and aims to be a leading Cantonese audiobook resource.

**Highlights:** Extensive e-book library, Cantonese audiobook collection, Multimedia courses, Author interviews and video content, Daily content updates, Hong Kong and international Chinese literature

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8知書幣 | $0.99 | one-time |
| 38知書幣 | $4.99 | one-time |
| 58知書幣 | $7.99 | one-time |
| 80知書幣 | $9.99 | one-time |
| 193知書幣 | $23.99 | one-time |
| 248知書幣 | $24.99 | one-time |
| 298知書幣 | $36.99 | one-time |
| 403知書幣 | $48.99 | one-time |


### myLibrary Master

[App page](https://appshunter.io/ios/app/mylibrary-master/id6618119956)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 知書Nowbook free?

知書Nowbook is free to download, with in-app purchases available.

### Is myLibrary Master free?

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

### Do 知書Nowbook or myLibrary Master have ads?

Neither 知書Nowbook nor myLibrary Master shows ads.

### Which is updated more often, 知書Nowbook or myLibrary Master?

知書Nowbook ships an update every 2 months, and myLibrary Master every 14 months. Most recently, 知書Nowbook was updated on October 24, 2026 and myLibrary Master on October 27, 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.*