minipoll - Create simple shareable polls in seconds
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.
Polls for iMessage - Group Decisions Made Easy. Create polls, vote, and view the results directly in iMessage. The easiest way to make any group decision.
My Vote - My vote is an app that allows you to create ranking, ratings, polling contests, and view the results either after voting closes or in real-time.
Curious Polls - Answer a question once a day for the chance to win £100/$100
ElectionBuddy - Online voting & elections software