# 新北愛 BOOK vs Preplo

The clearest difference is in-app purchases: 新北愛 BOOK at none against Preplo's 1. 新北愛 BOOK also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). Preplo's advantage is update cadence (every 5 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Preplo sells 1 one-off in-app purchase. 新北愛 BOOK asks for nothing beyond the download.

新北愛 BOOK ships an update every 3 weeks, Preplo every 5 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 新北愛 BOOK | Preplo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (18 ratings)](https://appshunter.io/ios/app/book/id609703087/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 68 MB | 40 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [新北市立圖書館](https://appshunter.io/developer/609703370) | [YICHIN TENG](https://appshunter.io/developer/6789793162) |

## What reviewers say

### 新北愛 BOOK

[App page](https://appshunter.io/ios/app/book/id609703087)

Access library services on your mobile device. Instantly search for books, receive notifications about your loans, and manage your account with a digital library card.

**Highlights:** Real-time catalog search, Service push notifications, Book reservations, Loan renewal, Mobile library card

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

**In-app purchases:** none


### Preplo

[App page](https://appshunter.io/ios/app/preplo-disaster-prep-guide/id6805942785)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 移除廣告 | $2.99 | one-time |


## Frequently asked questions

### Is 新北愛 BOOK free?

新北愛 BOOK is free to download, with no in-app purchases.

### Is Preplo free?

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

### Do 新北愛 BOOK or Preplo have ads?

Preplo shows ads; 新北愛 BOOK does not.

### Which is updated more often, 新北愛 BOOK or Preplo?

新北愛 BOOK ships an update every 3 weeks, and Preplo every 5 days. Most recently, 新北愛 BOOK was updated on October 24, 2026 and Preplo on October 31, 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.*