AnalyticFast connects website visits to payments so you can see which channels, pages and campaigns actually bring in revenue. It compares first-touch with last non-direct attribution and connects to Stripe, Whop, Lemon Squeezy, Polar, Paddle and Dodo Payments. It also offers a REST API, server-side events, an MCP server and live counter widgets. Plans start at $9/mo with a 14-day free trial (no card required), plus a self-host option.