Use code BLACKFRIDAY50
I use this to sync all my phone pictures to my home server, synchronisation is perfect and speed is fantastic, love the product
From wikipedia -
Resilio Sync (formerly BitTorrent Sync) by Resilio, Inc. is a proprietary peer-to-peer file synchronization tool available for Windows, Mac, Linux, Android, iOS, Windows Phone, Amazon Kindle Fire and BSD. It can sync files between devices on a local network, or between remote devices over the Internet via a modified version of the BitTorrent protocol.