Business Hangouts for G Suite - Business Hangouts is a webinar platform its an all-in-one app to produce business and corporate Webinars, Online meetings, Web Conferences, and Virtual Events.

myQuiz.org - myQuiz is an Audience Engagement Cloud Platform

Supermetrics - Supermetrics condenses all the major vectors of data relevant to a user's marketing campaigns and helps them make sense of it all.

TestMOZ - TestMOZ is an online platform for creating interactive quizzes and questions to keep your audience engaged on your social media, websites, or blog channels.

Cervinodata - Cervinodata Makes it super easy to present your campaign performance data in Klipfolio, Google Data Studio and others. Free plan available.

QuizWhizzer - QuizWhizzer is a platform that allows you to create a quiz to engage your audience inactivity.