HomeAppsBooks & ReferenceCalibre SyncApps like Calibre Sync Here are some great alternatives to Calibre Sync by BIL studio : CloudBooks audio book player ★4.2 Astiga - Cloud music player ★3.3 Cloud Storage / Backup Data ★4.2 Sync - Backup and Restore ★3.4 Air Explorer ★3.5 Advance Online Storage/ Backup ★4.2 FE File Explorer Pro ★4.5 ContactSync trial ★5.0 ownCloud ★4.2 ContactSync - CardDAV and more ★4.9 floccus bookmark sync ★4.1 CloudPlayer™ cloud & offline ★3.6 Titanium Media Sync ★3.4 OneSync: Autosync for OneDrive ★4.6 DAVx⁵ – CalDAV CardDAV WebDAV ★4.3 Dropsync: Autosync for Dropbox ★4.7