How I Use It
Like other tools designed to increase learner interaction with video (Educanon and EdPuzzle come to mind), Zaption is a great option for inserting elements into an existing video to help focus learning (they call them "tours"). Its recent addition of a presentation mode enhances whole group instruction, which is very helpful in situations where a teacher may be showing a video but wants students to interact individually with prompts and questions via browser. For independent learning, it provides a level of accountability as it gathers analytics on viewing time and responses. Multiple choice questions provide immediate feedback, but other question types are available for later assessment (numerical response, multiple response, discussion prompts, and drawing tools). For those with Learning Management Systems, it also has limited LTI functionality but is best used via embed code. The shared gallery has Tours that you can copy and adapt, which is helpful as a starting point.
Overall, this is a very good option for increasing a learner's engagement inside of a video. It doesn't necessarily require a login or account on the student side (depending on the settings of the tour) but it does prompt for a name to gather data. Tours must be built in the browser of a desktop or laptop (at least at the time of this post), but they can be viewed on the iOS app or within the browser on an Android device. What would make this more functional would be to allow content from sources other than YouTube or Vimeo. It appears that you have many choices for video sources, but almost all of them are simply hosted on YouTube. Many schools have YouTube and/or Vimeo blocked, which limits the content that can be used for younger students. Content on TeacherTube or SchoolTube isn't available, which would be a good spot for video sources that are widely available. Some of the options for elements are limited, but the presentation mode it what really sets this apart from other video engagement tools. That alone makes it worth a look as it removes a barrier for student interaction.