OpenPoll is described as 'This little free tool can be used for creating small polls. Currently, the tool supports combinations of the following poll features:'. There are more than 50 alternatives to OpenPoll, not only websites but also apps for a variety of platforms, including iPhone, iPad, Android and Windows. The best alternative is LimeSurvey, which is both free and Open Source. Other great sites and apps similar to OpenPoll are SurveyMonkey (Freemium), Nextcloud Forms (Free, Open Source), SurveyJS (Free Personal, Open Source) and Straw Poll (Free).
Opina is an online application that allows you to design and share surveys to your contacts on Internet. Besides, you will be able to collect and export the data of your surveys in order to analyse them as you need.
Agree is a shared voting app to help you come to a joint decision with friends and colleagues. Create and share polls, and simply swipe right to vote yes and left for no. Winning options pop up as a notification once everyone has voted.