Google Opinion Rewards, Survey Junkie, and Swagbucks are a few of the best apps for conducting market research and surveys. With so many survey opportunities and reward options available, thrummy slots appese apps make it simple for users to make money on the side. Users can earn some extra money and have a big impact on the goods & services they use on a daily basis by sharing their opinions and insights. However, by just letting the app track their in-store & online shopping habits, users of market research apps like Shopkick & Nielsen Mobile Panel can earn rewards passively.