Direct Opinion is a free Android app that allows you to earn money by participating in market studies globally. With this app, you can complete surveys, test products, and make test calls, among other tasks. The app is entirely free, and there is no commitment required.

Once you register, you can choose an ongoing campaign in your country and follow the instructions. You can see the available campaigns in your country, the payments, and the instructions on how to participate. You can also monitor your participation, check your income, and track your payments.

Overall, Direct Opinion is a useful app for those who want to earn some extra cash by participating in market studies. The app is user-friendly and easy to navigate, making it a great option for anyone looking to make some extra money in their free time.