Copyright © 2017 Acrosync LLC * Free for personal use or commercial trial * Non-trial commercial use requires per-user licenses available from [duplicacy.com](https://duplicacy.com/customer) at a cost of $20 per year * Commercial licenses are not required to restore or manage backups; only the backup command requires a valid commercial license * Modification and redistribution are permitted, but commercial use of derivative works is subject to the same requirements of this license