rsync, Acronis Cyber Protect Home Office, FreeFileSync, Duplicati, SyncBack, SyncToy, GoodSync, Dropsync, DirSync Pro, Second Copy, Unison File Synchronizer, DeltaCopy, Bvckup 2, SyncBreeze, DSynchronize, FileMenu Tools, Directory Compare, ozSync, rsync backup for Android, SSuite Kronoz Sync-Master, Backuplist, Sync Butler, CleanSync, SynchroHajzel are some alternatives to PureSync.