Calibre Companion

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5.01K reviews
Content rating
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About this app

"100 Best Android Apps of 2019" - PCMag

Calibre Companion (CC), recommended by calibre developers, is three applications in one:
- a superb device-based calibre library organizer
- a high-performance WiFi-based calibre device emulator
- a calibre content server and cloud provider (Dropbox, Box, Google Drive, Microsoft OneDrive, and Amazon Cloud Drive) client

1) CC is a device-based calibre library organizer. Once you put books on your device using one of the connection methods described below you can:
- view a book's metadata (author, tags, series, rating, dates, etc.).
- sort and group books by their metadata.
- see book lists by cover or by list.
- mark books read and sync this information with calibre.
- launch your book reader application to read a book (works with most reader applications except for Amazon Kindle for Android on non-Fire devices).

2) CC can connect to calibre over WiFi and be detected by calibre as a device. Once connected, you use calibre to move books to and from your device. Calibre automatically updates all the book metadata stored by CC to match the latest in your library.

3) CC can connect to calibre’s content server or to your cloud provider to browse your library and download books to your device. Cloud providers currently supported: Dropbox, Box, Microsoft OneDrive, and calibre libraries on the device or on an SD card.

For more information see our FAQ (

1) CC is not a reader app. You must install and use one of the many excellent reader apps available.
2) CC requires that you use calibre calibre 0.9.02 or later, available at Some CC features such as syncing book read information require newer versions of calibre.

A free demo version of CC is available in the Google Play store. Install and test with that version if you have concerns that CC won't work on your network or isn't what you need. To get it, go to and click the button for the demo version (links to Google Play don't work here).

Permissions explanation:
- Allow Wi-Fi multicast reception: multicast is required to be able to find calibre without requiring you to enter an IP address.
- Users with Jellybean (Android 4.1): You will also see a permission about “Test access to protected storage”. This is caused by a change Android is making regarding SD card access, and simply means our app can save books on your external storage.
Updated on
Aug 19, 2020

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
No information available
5.01K reviews
A Google user
February 16, 2019
This is best app of its kind available. Different users may have different needs and no single app can address all those. I found it very useful and a breeze to use. Setting it up on any device is a breeze. Connect the computer and the device to same wireless network and you are all set. Worth every penny in gold. Last but not least—the excellent customer support. One of its great features that i love is that it lets you move your library to external storage in case you need space.
45 people found this review helpful
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A Google user
April 3, 2020
It works most of the time but I wish this was in a better state. It's old, looks outdated, a pain to use on tablets and always has trouble connecting to a content server on the network. I always have to turn on the wireless device stuff first and that connects but wont show any books. Only after that and I disconnect can I connect to the content server. I wish we had a modern ebook reader for calibre. :( Almost at the two year mark with no updates.
40 people found this review helpful
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All the boops and mlems
November 30, 2021
Followed all of the instructions and it won't allow me to connect, so I have no way to read books on my phone because I can't access them. The help isn't helpful & there's no way to change the settings (email address, settings, etc) so whatever you put in when you first got the app, you're stuck with. Disappointing because I used to love this program & recommended it to everyone.
43 people found this review helpful
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What's new

- Bug fix for large files being downloaded from cloud