Methinks is an app where businesses pay for your feedback and opinion on certain topics, apps, games etc. You can participate and get paid by doing surveys, focus groups, and interviews. Payments can be through PayPal or Amazon credits. You can even use the referral code and get a bonus upon completing your first project. There is an Android and iOS apps as well.
It takes 5 minutes to post your referral codes here for the world to use.
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