i tried fyber,3/3...the surveys never work,with any of them,maybe 1 in 10,just a waste of time from my experience...trialpay is useless in my opinion,except for the paid offers,i use those from time to time when it's something i don't mind paying for....nativex had very poor customer support even on the paid offers...fyber does seem easier to use,more choices for those who aren't able to purchase plats....