Quizzes for Pages - Quizzes for Pages is an application to create and share quizzes on your Facebook Page.
Decidr - Make better decisions with quick A/B polls
Outgrow - Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.
GoodUI Evidence - People's A/B test results that show which UI ideas work best
doopoll - Create live, instant, editable polls effortlessly
Lean Analytics - A/B testing React apps made easy