Affonso

Affonso is affiliate software built for SaaS, and its pitch is that you should not pay a percentage of your own affiliate revenue to run a program. Pricing starts at €15 a month with no transaction fees at all, which puts it well under the tools that take a cut on top of a subscription.

Setup is quick because it hooks into the billing you already use. Stripe, Paddle, Polar, Creem and Dodo Payments connect directly, and commissions can be fixed or percentage, one time or recurring, with multi tier support if you want affiliates recruiting other affiliates. Payouts are managed globally in more than 190 currencies by bank wire or PayPal, and tax compliance is handled with automated W-8 and W-9 collection, which is the part most small teams underestimate.

Tracking is cookieless and GDPR compliant, with Cookiebot and OneTrust integrations, so attribution survives consent banners and browser restrictions. Fraud tooling blocks self referrals and disposable email signups. There is a white label partner dashboard, an AI affiliate discovery feature and a marketplace, plus a REST API, OpenAPI spec, TypeScript SDK, CLI and an MCP server for anyone wanting to wire it into their own systems.

If you are a founder who wants a program live without a per transaction tax on growth, this is one of the cheapest credible options.