# 琅琅書店

> Langlang Bookstore provides ePub, PDF e-books, magazines and newspapers for reading on mobile phones and tablets.

Canonical page: [https://chrome-stats.com/d/com.udn.dp.books.android](https://chrome-stats.com/d/com.udn.dp.books.android)

## Overview

- **ID:** `com.udn.dp.books.android`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** udn.com
- **Category:** BOOKS\_AND\_REFERENCE
- **Downloads:** 65,606
- **Rating:** 2.00 / 5 (623 ratings)
- **Version:** 4.13.0
- **Last updated:** 2026-07-28
- **First published:** 2013-09-06
- **Publisher country:** TW
- **Size:** 52 MB
- **Data as of:** 2026-09-18
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.udn.dp.books.android)
- **Website:** [https://mobile.udn.com/reading/](https://mobile.udn.com/reading/)
- **Privacy policy:** [https://www.udngroup.com/members/udn\_privacy](https://www.udngroup.com/members/udn_privacy)

## Description

琅琅書店是一款功能豐富的電子書閱讀Chrome擴充程式，支援ePub 3.0與PDF格式，讓用戶可隨時隨地在手機、平板和電腦上享受閱讀體驗。其新型分類方式方便快速瀏覽喜愛書籍類型，強大的搜尋功能可依書名、作者或出版社尋找內容。書櫃管理功能包含長按刪除或重新下載書籍，提升管理便利性。

該擴充程式支援離線閱讀，並提供自動記錄閱讀進度、亮度調節與章節目錄，增進閱讀舒適度。雲端同步讓多達五台設備的書籤實時共享，閱讀不中斷。PDF格式支持最佳閱讀方向調整及筆記管理，ePub格式則提供全文關鍵字搜尋、劃線、標記與筆記匯出功能，還能自由切換頁面翻頁模式與日／夜間主題，打造個性化閱讀體驗。

## Rankings

- #267,729 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_CUSTOM_AUDIENCE`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.CHANGE_CONFIGURATION`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_SETTINGS`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.udn.dp.books.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users commonly experience stability issues with frequent crashes and poor optimization leading to lag. The app struggles to remember reading progress and loses highlights unpredictably, frustrating readers. However, recent updates introduced direct purchasing and trial downloads within the app, and developers respond quickly to fix problems. Cloud syncing has improved, but some content formats like EPUB are still problematic. Text size adjustment is lacking, detracting from usability.

### Pros

- Added ability to download trial books and purchase directly within the app.
- Developer responses and problem fixes are quick and effective.
- Improvement in cloud syncing for bookshelves.
- Support for EPUB content is present (though with some issues).

### Cons

- App often crashes and is unstable on various devices.
- Pages are slow to load with poor optimization, causing lag and a negative reading experience.
- Cannot save reading position; each time opening a book requires manually finding the last spot.
- Highlight annotations disappear mysteriously after being added.
- Text size adjustment is not available or not functioning properly.

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.udn.dp.books.android)