There are heaps of freely available applications out there. There also is an insane amount of fraudsters willing to scam peole into giving good money out for nothing more. In short, do NOT pay anything for iTunes, FrostWire, or any similar application before before at least checking whether or not they are available for free from their publishers’ website. Same goes for free music/movie/download “memberships” without knowing what exactly you are buying. When one realises they’ve fallen victim to this type of scams, it’s usually too late, but sometimes, it’s worth persevering and trying to get a refund.