reviews...Looked at the reviews of the app as I saw this pop today.
seems that a lot of the 5 star reviews are from people offering referral codes ie. they get paid for
people to sign up, The 1 and 2 star people say that it doesn't work, a waste of time and many of the surveys collect data and then say you don't qualify.
Based on the volume and pop today I imagine this still has legs. Maybe they work the bugs out , but it seems a liittle sketchy.
GL with your trading.