Calibre for iPhone and iPad

Your Calibre books on your iPhone and iPad.

Browse your library, download EPUB and PDF files, and send new books back to Calibre from your phone. You do not have to configure anything.

Downloads are not available yet.
There is no verified release destination.

Calibre Relay Desktop

Your LibraryIllustrative catalog

Library

Search title or author

Illustrative covers

Your Calibre catalog

Find the book you want.

Search the library you already organized in Calibre by title or author. Choose an EPUB or PDF without digging through folders.

Search: Title or author
Choose: EPUB or PDF
Open: With the public system share sheet

Library exampleSearch title or author

6 books in this exampleIllustrative covers

After you choose

Download it and choose where to read.

Relay checks the EPUB or PDF and opens the public iPhone or iPad share sheet. Choose a compatible app already installed on your device.

Example book

Paper City

EPUB

System share sheet

Choose a compatible app

Interface and covers shown here are illustrative.

Books move both ways

Your Calibre books come to your phone. New EPUB and PDF files can go back.

Calibre stays in charge of the library on your computer. Your phone can browse and download from it, or send a new EPUB or PDF toward Calibre.

01 · Computer

Your Calibre library

Relay Desktop reads the library you choose.

Calibre RelayCatalog and book files

02 · Phone or tablet

EPUB and PDF

Browse, download, or share a new file back. Calibre adds it when your computer is available.

Setup

You do not have to configure anything.

01
Install Relay Desktop
Use the computer where your Calibre library lives.
02
Choose your Calibre library
Calibre remains authoritative on your computer.
03
Sign in on your phone
Use Relay from your iPhone or iPad.

What Relay is for

Choose in Relay. Read in the app you already use.

Relay handles the catalog and the book file. Relay is not a reading app.

Downloads are not available yet.

Files: EPUB and PDF
Mobile: iPhone and iPad
Computer: Relay Desktop is required
Reading: Uses compatible installed apps
Library: Calibre remains authoritative