Plugin to Create an Affiliate Program on WordPress

Hello, already for some time I’m looking for a plugin that would allow me to create an affiliate program (I'm not talking the usual plugin affiliations) but a plugin that allows subscribers to your blog to earn money for each visit or in writing that lead the blog via a special affiliate link removed from their control panel.

The only plugin I found is "Rewards Plus" but this is very limited.

There’s also something to pay for?

thanks Stefano