CaliMob FAQ — Calibre on Android, Formats, Cloud Sync

General

What is CaliMob?

CaliMob is a mobile ebook reader for Android that connects to your Calibre library. Read EPUB, PDF, comics, and audiobooks on your phone or tablet — synced from Google Drive, Dropbox, WebDAV, or any of 7 cloud backends. Think of it as your Calibre library in your pocket.

Is CaliMob free?

Yes! CaliMob is free to download and use. A premium plan is available for advanced features like multi-library sync and cloud storage.

Which formats does CaliMob support?

CaliMob reads EPUB, PDF, MOBI, AZW3, CBZ, CBR (comics), and plays audiobooks (MP3, M4B, OGG, FLAC). It supports customizable fonts, themes, day/night modes, and text-to-speech.

Adding Books

How do I add books to CaliMob?

CaliMob supports 7 ways to add books:

  • Google Drive — point to your Calibre library folder on Drive
  • Dropbox — automatic sync with your Dropbox folder
  • WebDAV / Nextcloud — self-hosted, privacy-first
  • FTP / SFTP — connect to any network storage
  • OPDS catalogs — browse and download from online libraries
  • Calibre Content Server — direct connection to Calibre on your computer
  • Local storage / SD card — import files directly from your device

What is the Demo Library?

CaliMob includes a Demo Library with free public domain ebooks, comics (Pepper&Carrot), and sample audiobooks. It’s a great way to explore all features without setting up your own library first. The demo content is accessible via OPDS from the app.

Do I need a Calibre library to use CaliMob?

No. You can import books from local storage, SD card, or OPDS catalogs without having Calibre. But CaliMob shines when connected to your Calibre library — it syncs all your metadata, covers, series, and tags automatically.

Reading

Can I read comics and manga?

Yes. CaliMob has a dedicated comic reader for CBZ and CBR files with double-page mode, manga right-to-left reading, and panel-by-panel navigation.

Does CaliMob support audiobooks?

Yes. The built-in audiobook player supports chapter navigation, playback speed control (0.5×–3×), sleep timer, and background playback. Supported formats: MP3, M4B, OGG, FLAC.

Can I customize my reading experience?

Absolutely. CaliMob offers day, night, and sepia themes (or create your own), customizable fonts and margins, adjustable brightness, text-to-speech, and bookmarks. Your reading position syncs across devices.

Sync & Privacy

Does CaliMob work offline?

Yes. Once books are downloaded to your device, you can read them without an internet connection. Metadata and covers sync when you’re online; reading is fully offline.

Does CaliMob track my reading habits?

No. All data stays on your device. CaliMob does not collect analytics on what you read, when you read, or how much you read. Your library, your data, your control.

What is CaliWeb?

CaliWeb is the web companion to CaliMob — a browser-based interface to manage and read your Calibre library online. It’s currently in development.

New to CaliMob? Read our step-by-step setup guide to get started in 5 minutes. Or explore the demo library with 30+ free books, comics, and audiobooks.

Last updated: June 30, 2026