iPoll

As the name might imply, iPoll lets you earn gift cards and airline credits by simply sharing your opinion. You will be asked to provide some basic information about yourself, which will help determine which missions are best for you. Once a new mission is available, you will be notified. The missions revolve around a range of topics, and include product reviews, in-store shopping experiences, ad testing, and brand awareness. Once you’ve completed your mission, you’ll receive a slew of credits, which you can then exchange for cash or gift cards to your favorite brands.

https://www.ipoll.com/en