Raven Tools is an online service that is able to perform all important SEO reports for a website owner or a SEO agency. To use it at its full potential, you have to link it with your Google Analytics, Google Search Console (Webmaster Tools) and Google Adwords.
It displays search volume and the competition for your keywords. You can add keywords from a CSV file, since in Google Analytics the majority are "not provided".
It displays detailed reports and graphs with all backlinks of a given site. It displays the Moz DA/PA (domain/page authority).
You can create custom reports with a wizard. Useful for SEO companies that provide reports to their clients.
After you connect Raven account with Google accounts and get used with its interface - it has too many options at the first view - you will discover that is an useful tool to automate and manage your SEO activity.