Kahoot! - Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
Sli.do - Slido is the ultimate Q&A and polling platform for live and virtual meetings and events. It offers interactive Q&A, live polls and insights about your audience.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
Mentimeter - a web-based polling tool for workshops, conferences & events
Publicate - Build Beautiful Emails. Export and Send Anywhere.