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Prolific - Quickly find high-quality survey participants
Acorn Hunt - Acorn Hunt is an app that comes up with different ways to provide you entertainment and win real money.
The PCH App - The PCH App offers you a chance to get exclusive prizes on a daily basis through a giveaway, and you can win cash, gift cards, and merchandise of popular brands.
SurveyMini - SurveyMini app provides you with an easy way to share your thoughts and opinion about places that you visited.
Swagbucks - Swagbucks is a loyalty program that offers individuals rewards for engaging in various activities. Users can earn reward points for performing Internet searches, purchasing items from affiliated vendors, or completing polls.