Single choice vs multiple choice polls

Under General settings > Choice type, pick how many answers a visitor can give.

• Single: visitors can pick only one choice. Use this for questions with one answer, such as Which plan are you on?
• Multiple: visitors can pick as many choices as they like. Use this for questions such as Which of these tools do you use?

On a single choice poll, OpinionCamp makes sure only one answer is counted per vote, even if someone tries to send more.

When you use Multiple, it helps to say so in the description, for example: You can choose more than one.