The GPTreasure is not exactly a PTC, in fact it is a site that pays you to complete offers, each offer varies in price, but at least every offer that you receive complete and may reach $ 0.30 to $ 1.00 !! To help the site has a step by step in Portuguese to help the user to complete the offer.
A great advantage is that the site pays you $ 0.10 for each referral who signs up on the site !!! That same website pays $ 0.10 for every person you refer, and that person does register on the website!