The interest on $35 is only $4 since it is a flat rate not a reoccurring rate.
$35 at 0% APR, $4 fees, 6 weeks fixed term
$35 at 123% APR, $0 fees, 6 weeks fixed term
You could argue the high APR loan is worse because interest will be compounding if you miss your payments. But I'm guessing the Zip loan also has late payment fees.