Fixed sums per referral
AI trainer referral bonus: the flat-sum programmes
Updated
4 of the 6 platforms read pay a fixed amount, and each sets a different hurdle before it pays.
clickworker
You receive 5€/$ once your friend has been paid 10€/$.
Respondent
Respondent's pages give two amounts: a $20 signup referral when your referral earns $75 or more from completed studies, and a $50 bonus once a friend joins, verifies and earns $75 in studies. It is paid as a Tremendous virtual gift card, with up to 5 bonuses ($250) per project.
OnFrontiers
A fixed bonus is paid after the referred expert's first paid consultation, which must happen within 12 months of registering. Its page states no amount, and no cap on how many experts you refer.
micro1's placement bonus
A referral that ends in a successful placement can earn up to $3,000, released once the candidate you referred has completed 10 hours of work, and micro1 pays one referral payout per candidate.