Feiyr's prices to sell music and eBooks are fair and there are no hidden costs, here you can find all of them. After registering, you can look at the prices and get all the necessary information. You only have to pay €9.90 to activate your account; you have to activate your account only when and if you decide to publish your songs and eBooks. Until that moment you can test the Feiyr account for free. If you don't want to use your account, you don't have to pay anything.