Here you can download a copy of YourSites if you have a valid subscription.
We always recommend that you make sure your client sites are backed up before relying on YourSites - just as you should when applying upgrades using Joomla directly on your client sites. Yoursites provides an interface to Akeeba Backup on your client sites so you can initiate the creation of these backups from your YourSites server.
We love every single one of our users, without you YourSites simply couldn't happen! So we would love a review at the Joomla! JED so we can let others know about us too, please take a minute to write a review:
https://extensions.joomla.org/extension/yoursites-manager/
If you feel you have something negative to say, we would implore you to speak to us first, as we really really don't want anyone to be unhappy!