LAN Samba third-party sync tools:
There are three modes
1, synchronize, fully synchronized, the synchronized operation of the left to the right, the right side of the operation will be synchronized to the left
2, echo: the synchronized operation of the left to the right, the right side of the operation does not affect the right of
3, Contribute: existed on the left will be kept to the right, the left side of the masking operation, which is usually said incremental backups
Q3C LAN Sync free trial of Microsoft SyncToy
There GoodSync on your PC, there are FolderSync on Android
FolderSync? Oh well, you can set even specify WIFI on, automatic synchronization. Plug computer or mobile hard disk storage router then with foldersync IOS Andrews with photosync
Automatic backup on your PC, you can use Microsoft's free SyncToy