We would love to have an add-on for Outlook that is similar to what we have built for Gmail and we spent a decent amount of money and time trying to build it. Unfortunately, we stopped that development and put it on an indefinite hold because there making the same concept work on Outlook appears to be much more difficult and complicated than Gmail.
The reason why is that every single user that uses Gmail is running the exact same version of Gmail compared to a number of different versions of Outlook being used. This makes creating, deploying, and supporting the add-on much more complex and difficult and we are not positioned to successfully provide that at this time.
That may change down the road so either come back to this forum or get on our email list and you will be notified if the status on this changes.