Calibre Companion

5.6.0

Samuel Cohen

2.57

2,916 reviews

100,000+
Downloads

Free

Organize your calibre library, sync over Wi-Fi, and open books in your reader.

Download from Google Play

Calibre Companion is a three-in-one Android companion for your calibre library—an on-device organizer, a WiFi-based device emulator, and a cloud-enabled content server and client. It holds notable rankings in BOOKS_REFERENCE across three markets (SA #102, IN #103, SK #103) and integrates with cloud services for seamless access. With 100,000+ total downloads and 690 in the last 30 days, it has established a long-standing presence since its 5091-day app age.

Pros & Cons

Three-in-one functionality (organizer, emulator, cloud client) boosts productivity.
WiFi-based discovery and transfer reduces setup friction.
Cloud provider integration enables easy access to services like Dropbox, Box, OneDrive, and more.
Free demo version allows testing before commitment.

Not a reader app itself; requires a separate reader to view books.
Moderate overall user rating (2.68 from 2900 ratings) may reflect variable experiences.
Some features depend on compatible calibre versions (e.g., 0.9.02 or later) for full syncing.

About Calibre Companion

Calibre Companion is a books & reference app developed by Samuel Cohen.

Download Statistics

Calibre Companion has been downloaded 110 thousand times. In the last 30 days, the app was downloaded 690 times. It is ranked in the top 100 books & reference apps.

User Ratings

Calibre Companion is rated 2.57 out of 5 stars. The rating is based on 2.9 thousand ratings.

App Information

Calibre Companion is FREE to download. The APK download size is 14.88 MB. The latest version available is 5.6.0. The last update was on September 15, 2026.

Technical Requirements

Calibre Companion requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since August 2012.

Description

Keep your calibre library organized on your Android phone or tablet. Browse book covers and details, find your next read, and open books in your preferred reader app.

More data about Calibre Companion

Price	Free to download
Total downloads	110 thousand
Recent downloads	690
Rating	2.57 based on 2.9 thousand ratings
Ranking	Highly ranked
Version	5.6.0
APK size	14.9 MB
Number of libraries	43
Designed for Android	5.0+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the Calibre Companion app

Google Play Rating history and histogram

Rating history

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890

140

170

230

1.5K

Downloads over time

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Calibre Companion has been downloaded 110 thousand times. Over the past 30 days, it averaged 23 downloads per day.

Changelog of Calibre Companion

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Developer information for Samuel Cohen

Samuel Cohen

sam.cohen94@gmail.com

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Comments on Calibre Companion for Android

★★★★☆ Winter Phoenix · May 6, 2024

Was a bit worried that this was discontinued, glad it got an update. Did have an issue with a read-only library, but deleting the old one and making a new one fixed it. Edit: Trying to set the author name character limit in list view causes the app to freeze before returning to the list view, without being able to change the settings.

★★★★★ Simon Stainsby · Jun 29, 2024

It gets my EPUB books from my Caliber server to my phone.

★★★★☆ SuperLink2013 · May 8, 2025

Great application and pretty much delivers on everything it offers!! Ther is only one issue I have found with no clear solution. It doesn't recognize, as a reader, moon reader pro. Therefore, for reading the books, I have to manually open moon reader pro.

★★★★☆ Jennifer McGaffey · Dec 31, 2023

I have used and loved Caliber Companion for years; it is the best way of getting books from caliber on my computer onto my phone for reading. The latest update has made things much more difficult, though; while I can still get and mark books I cannot open a book in any reading app (I've tried my usual FB Reader, Moon+, Aldiko...). It will happily attempt to open a book in Songbook - at least, that's the app that pops up when I hit Read. The book doesn't actually open.

★☆☆☆☆ YO · Jan 31, 2024

This was my favorite app. I used it for years, but the new update killed it. Caliber will not recognize any of my ebook reader apps, so I can no longer use it. I'm going back to paper books and canceling prime subscription.

★☆☆☆☆ Dermot Lacey · Dec 8, 2025

Abandoned by developer and now won't connect to my online caliber library.

★☆☆☆☆ Mark Holman · Dec 27, 2023

This app was fantastic 5 stars until the most resent update (now < 1 star) which has broken it for most users with any largish caliber library. If your not lucky enough to have backed up the app before it updated a workaround is to get the amazon app store and install their version of caliber companion (ensuring this is set to NOT update)

Google Play Rankings for Calibre Companion

Top rankings

Rank	Country	Category	List
58	Indonesia	Books & Reference	Top New Free
59	Netherlands	Books & Reference	Top New Free
60	Saudi Arabia	Books & Reference	Top New Free
60	Slovakia	Books & Reference	Top New Free
61	Belgium	Books & Reference	Top New Free
61	Switzerland	Books & Reference	Top New Free
61	Czech Republic	Books & Reference	Top New Free
61	Norway	Books & Reference	Top New Free
61	Poland	Books & Reference	Top New Free
61	Portugal	Books & Reference	Top New Free

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Ranking history in Indonesia

Ranking history

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Technologies used by Calibre Companion

24 permissions · 43 libraries

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Trust & Safety: The app requests a broad set of permissions typical for networked library management, including location, various network and storage permissions, and foreground service. LAN discovery uses multicast for device detection. Users should review permissions during setup and grant access only as needed, especially for storage and location-related features.

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