You would use a synchronous poll when you want to control when participants move to the next question. You would use asynchronous when you want to allow participants to take the poll independently.
To redirect your participants to a specific website, simply enter the HTML link in the redirect box on the 'Create Poll' page, 'Advanced Options'.
Users with the Individual Plan license can have up to 50 people take each poll. Users with the Team Plan license can have up to 300 people take each poll.
BUZZ gives you the ability to set the time the participants will need to actually read the question, such as 5 seconds, before beginning the countdown clock to answer the question.
You set the time length for data retention when setting up your poll, Data may be kept for the length of your license, or for a limited time as fits your needs.
The main difference between Poll Guru and Buzz is the leaderboard/competition aspect of Buzz. Poll Guru gathers and reports information while Buzz uses that information in a competitive format.
Upon entering the poll, the participant will be asked to choose the team from the options you have set up.