play.google.com/store/apps/details?id=com.happi&referrer=8BF3E40   👈

@Annie209 + Happi

Happi rewards people generously for their participation in mobile monitoring research and honest and thoughtful responses to surveys. Specifically, we pay in cash-like prizes $5 for each week of compliant monitoring participation and roughly $9 per hour for surveys, assuming your average time per question response is 5 seconds. Your mobile behavior is what triggers the survey questions, so we can’t predict how many questions you will get each week.