Can I manage more wordpress sites with one wordpress administrator page? [closed]

I would like to find a solution, where I can administer multiple wordpress sites (50 plus) using one wordpress admin interface or other tool. I would like to manage plugins and content on these sites.

Is there such tool exists?

I assume you are not interested in multisite network, but in managing multiple separate blogs?

By description this sounds like ManageWP (for the record hadn’t used it myself).