# Library Merger

> Keep your Libraries in sync

Canonical page: [https://chrome-stats.com/d/id1539780103](https://chrome-stats.com/d/id1539780103)

## Overview

- **ID:** `id1539780103`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Andreas Skorczyk
- **Category:** Utilities
- **Rating:** 4.60 / 5 (38 ratings)
- **Version:** 0.8.1
- **Last updated:** 2026-07-16
- **First published:** 2020-12-07
- **Size:** 13 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/library-merger/id1539780103)
- **Privacy policy:** [https://github.com/AndreasSko/ios-jwlm/wiki/Privacy-Policy](https://github.com/AndreasSko/ios-jwlm/wiki/Privacy-Policy)

## Description

Study with JW Library® on multiple devices, while still keeping your notes, markings, and bookmarks in sync.

You know the problem: You study with JW Library® on different devices - and in the end, you have two versions, that you can’t easily combine anymore. With the Library Merger this is a thing of the past!
The Library Merger allows you to quickly and easily combine two JW Library® backups into one. Simply open both backups in the app (you can even send them via AirDrop). The app will merge them into one. If it finds a conflict (like two bookmarks at the same place, or two markings that overlap), you can choose which version to keep. In the end, you have one merged backup which you can easily restore on your devices. The process - if done regularly - literally takes you seconds!

Library Merger is still in its early stages and is being actively developed. The code is open source and can be found on GitHub. If you found a bug or have suggestions, feel free to contact me.

## Rankings

- #194,148 — Overall

## Review summary

Library Merger helps users sync and merge JW Library backups across devices, but recurring issues include Google Drive incompatibility, non-synced playlists, lengthy initial merges, and occasional backup-version compatibility problems. Some users question its necessity given JW Library’s built-in cloud backup. Overall, it’s valued for cross-device syncing and data consolidation, with strong developer support.

### Pros

- Syncs and merges JW Library backups across multiple devices, keeping notes and highlights in sync.
- A lifesaver for users who switch between devices, reducing out-of-date information.
- Works with cloud backups like OneDrive and iCloud to move data between devices.
- Cross-platform compatibility (iPhone, iPad, Mac) with responsive developer support.

### Cons

- Backups stored in Google Drive are not selectable/fully compatible.
- Playlists do not sync and can be deleted during a merge; they must be backed up/restored separately.
- Initial merge can be very time-consuming as items must be selected individually.
- Backups may be incompatible or outdated after JW Library updates, causing failures.
- Some users see limited added value since JW Library already provides cloud backups; perceived redundancy.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1539780103)