Clever - syncing between education applications for K-12 schools
Pollie - Create polls and share them via your favourite tools
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
PollUnit - Create and customize public or anonymous votings, surveys, free tables, idea collections or audio, video and photo contests.
Claroline - Claroline is a collaborative eLearning and eWorking platform.
Cast Your Vote - Cast Your Vote is an app that allows you to set polls and a voting system and know the answer to your question.