Library Merger

Name: Library Merger
Rating: 4.6 (38 reviews)
Author: Andreas Skorczyk

By: Andreas Skorczyk App

Keep your Libraries in sync

Overview

Version:

0.8.1

Last updated: 2026-07-16

Ranking

#221,748 ▼ 1,137

Overall

Features & Capabilities

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.

User Growth & Download Statistics

App

By:

Andreas Skorczyk

Rating:

4.60

(38)

Version:

0.8.1 Last updated: 2026-07-16

Version code:

888345707

Creation date:

2020-12-07

Compatible devices:

Size:

13.04MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-07-22

Compare stats and ranking:

Ranking

# 221,748 ▼ 1,137

For Developers

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Contact the developer

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Developed by:

Andreas Skorczyk

Apple Apps Store

https://apps.apple.com/us/app/library-merger/id1539780103

User Reviews

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A lifesaver for users who switch between devices, reducing out-of-date information.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.

Recent reviews

Well I have an iPhone, an iPad, a desktop computer and a laptop computer. I do most of my work on the iPhone and iPad so once I sync them I export the database to the desktop and laptop. It's great having everything INSYNC! Thank you!

by ht*****, 2026-07-05

It’s good for merging files. But beware, it will delete your playlists. Also, for some reason if you keep your backups in Google Drive, you can select files. Works fine with one drive. But not Google Drive. I’ve never been able to figure out how to select the backup from Google Drive.. the files won’t let you select them.