Last year when Trialpay started to get more popularity, I went ahead and gathered a list of about 280 trialpay offers, meaning programs and services that you could get for free by testing other offers they had from advertisers. The principle of Trialpay didn't change, just that they added more products, and there are now more advertisers:
- you see that a product/service you want to buy offers a "Get it free with Trialpay" option and click on that link where you'll see the trialpay purchase page
- next you'll see what offers are available from advertisers for your country; if you're from US/UK, there's hundreds of advertisers to choose an offer from; and choose carefully, because you'll might find an offer that doesn't require you to purchase anything, simply signing up for a service
- after you complete the details for that offer (they guide you what to do), you'll receive the key for that product
Hope you find it useful, it "only" took me two days to gather all this information :). And yes, if you have a program you'd like to suggest add it in the comments and it will be added when I will update this.