Upon signing up and passing KYC ID verification MyConstant will add $2000 to your account for 30 days and let it earn interest. After the 30 days are up the $2000 is returned to them and you get to keep (and withdraw!) all the interest earned. Mine was just over $7 when I did it, but it does fluctuate based on daily interest rates.
It's time to get your Invitation.codes account too 😎