Dot.vu is an interactive content platform to engage, entertain, and educate customers with interactive content. Interactive video is a part of the entire platform and focuses mostly on marketing.
On their platform, you can add interactions such as hotspots, navigation menus, and forms to your videos to make them interactive. They also have an analytics dashboard. Here you can track which viewer used one of your interactions and track the times an interaction might have been used.
At the time of writing you can start on their platform for free with one live project that has some visitor limitations. After that, they offer monthly subscriptions starting at quite a high price of $200 a month.