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

1) CC is a device-based calibre library organiser. 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

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. Supports Dropbox and Microsoft OneDrive.

For more information see our FAQ (

Notes: CC is not a reader app. You must install and use one of the many excellent reader apps available. You must also already use calibre to manage your library of ebooks.

What’s New

Version v1.3.2

This version lets you see more books on the main list of books, and fixes the shortcut for opening a book from that list by long pressing on it.

Ratings and Reviews

3.3 out of 5
46 Ratings
46 Ratings
Canavansbackyard ,

Giving up...

After having used this for over a year, I am finally giving up on it. It does work as advertised...well, sorta. My gripes fall into two categories. First, the user interface, while functional, is relatively crude and somewhat non-intuitive. I had hoped that this might be improved, but it’s remained pretty much the same since the app’s initial release. That’s not to say that this aspect of the app couldn’t see improvements in future releases. Second, the app is buggy. Some of my issues here are minor — for example, in my case the app unreasonably insists that all books have the exact same (incorrect) book cover. Various attempts to correct this odd behavior (including reinstallation) have failed to correct it. But my primary issue with the app is the reliability with which it connects to calibre. Sometimes it works flawlessly in this regard. But just as often, in spite of all troubleshooting attempts, it fails completely. For a paid app, I frankly expect better. I’ve repeatedly and exhaustively pored over the associated app FAQs on this issue, but have yet to understand why the app suddenly decides not to connect nor how to fix the problem when it does fail. I’ve decided that, while it’s not as elegant a solution, it’s far easier, far less frustrating, and infinitely more reliable to just use calibre to transfer books to Dropbox and then to move those books to a reader.

Yorye ,

Has worked flawlessly for for me for years

Man! I just do not get these negative reviews. It organizes the books in Calibre in a number of useful ways and provides a very easy way to transfer the books. My Calibre library is stored on Dropbox, so no matter where I am, as long as I have an internet connection, I can get any of my books without connection to my PC, which is quite useful since I never take my PC traveling. Sure there are a number of other ways to set up Calibre to access your books, locally and remotely, but none as simple and reliable as CC.

DsrtTrkr ,

version 1.3.1 buggy on ipad

I have been using CC for a while on my iPad and iPhone and it has worked without flaw in the past, but since IOS 11 came out it has been kind of glitchy. It was offline for a while but now the update has made it compatible with IOS 11, it is working fine on my iPhone, but still a few issues with iPad.
The app serves me well and I do recommend it for getting your books from calibre to your preferred device.


MultiPie Ltd
59.7 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Steve Haley


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

You May Also Like