Calibre Sync

6.10.4

BIL studio

3.55

342 reviews

10,000+
Downloads

$5.49

All in one Calibre libraries on your phones and tablets with Full text search.

3.55 · 342 reviews · 10,000+ downloads · #27 in Books & Reference

iOS version

About Calibre Sync

Calibre Sync is a books & reference app developed by BIL studio.

Download Statistics

Calibre Sync has been downloaded 14 thousand times. In the last 30 days, the app was downloaded 210 times. It is ranked #4 in books & reference.

User Ratings

Calibre Sync is rated 3.55 out of 5 stars. The rating is based on 340 ratings.

App Information

Calibre Sync costs $5.49 to download. The APK download size is 45.50 MB. The latest version available is 6.10.4. The last update was on July 21, 2026.

Technical Requirements

Calibre Sync requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play April 2020.

Description

Lifetime support, no extra charge, no subscription fee.

More data about Calibre Sync

Price	$5.49
Total downloads	14 thousand
Recent downloads	210
Rating	3.55 based on 340 ratings
Ranking	Top ranked
Version	6.10.4
APK size	45.5 MB
Number of libraries	28
Designed for Android	4.4+
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the Calibre Sync app

Calibre Sync compared with similar apps

Common keywords of similar apps

Calibre Book Libraries Box Nextcloud View Search Services Pcloud Mega Proton Move Multiple Microsoft Read Accounts List Custom Columns Filter Downloaded Location Reader Select Case Sensitive Personal Supported Smart Sort Sync Library Cloud Drive Owncloud Books Support Dropbox Onedrive Terabox Device Access Google Webdav Storage App File Full Supports Features

Keywords missing from this app

Music Files Player Premium Audio Ai Free Offline Playback Server Play Playlists Local Automatically Create Folders Https Servers Devices Data Auto Add Flac Contact Recent Clouds Built Http Control Phone

Google Play Rating history and histogram

Rating history

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Downloads over time

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Calibre Sync has been downloaded 14 thousand times. Over the past 30 days, it has been downloaded 210 times.

Changelog of Calibre Sync

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Developer information for BIL studio

BIL studio

calibre.sync.help@gmail.com

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Comments on Calibre Sync for Android

★★★★★ Teresa Swarthout · Dec 30, 2024

The interface is maybe not the most intuitive, but the app is exactly what I was looking for and works well. Thanks.

★★★★★ Jennifer McGaffey · Apr 29, 2026

I used Caliber Companion for years, and was sorry to see it go. But I actually find Caliber Sync suits me better (except I wish I could sync back reading dates - you can, but only to caliber Content Server libraries). It's been working well for me for quite a while, then caliber changed their database and CS wouldn't work with the latest version. I am delighted to see the last couple updates - fixed that problem, but also glad to see fixes in general (not abandoned). Thanks!

★★★★★ Austin Poorbaugh · Aug 23, 2024

Incredibly powerful app and just what I was looking for! The developer is actively working to make this app better with each release and incorporates any of the suggestions and requests into new versions. I emailed requesting some support, and they replied within two days. Awesome! I have 1400+ books in my library and use the Caliber server option. Quick to search and find books that I want to put on my device. For those wanting sync-read-position -> moon+ reader is it.

★☆☆☆☆ Mike Klodnicki · Feb 12, 2025

Developer is no longer responsive. UI is a nightmare. It was worth a shot, but there's just not a proper offline caliber library browser app out there.

★☆☆☆☆ James Herman · Mar 30, 2026

Caliber v9.0 changed its db and as a consequence, Caliber Sync now fails to update. Last update to Caliber Sync was 1 APR 2025. I have not been able to Sync since at least early January 2026, coinciding with Caliber's v9.0 upgrade. Specifically, Caliber Sync on OneDrive generates a "metadata true failed to load library info" error on sync. Gemini indicates the problem is widespread and due to major change in the Caliber db with v9.0. Ostensibly, introduced to improve performance.

★☆☆☆☆ Leshawn Jackson · Apr 19, 2026

Do not pay for this app! The Caliber sync doesn't work and when I use one drive you can't even open the books on it, you need another reader.

Google Play Rankings for Calibre Sync

Top rankings

Rank	Country	Category	List
4	United Kingdom	Books & Reference	Top Paid
27	United States	Books & Reference	Top Paid
13	Austria	Books & Reference	Top Paid
13	Switzerland	Books & Reference	Top Paid
14	Czech Republic	Books & Reference	Top Paid
14	Norway	Books & Reference	Top Paid
14	Saudi Arabia	Books & Reference	Top Paid
14	Slovakia	Books & Reference	Top Paid
15	Denmark	Books & Reference	Top Paid
15	Finland	Books & Reference	Top Paid

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Ranking history in United Kingdom

Ranking history

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