Choosing between free trials, freemium, or a hybrid model shapes everything downstream — activation rates, sales cycle length, CAC payback, and how much room your product has to sell itself. This hub is for founders, growth leads, and PMs deciding which model fits their product, pricing, and buyer, and how to instrument it so free users actually convert. Expect frameworks for picking a model, teardowns of activation and paywall design, and the experiments we've run to lift trial-to-paid without gutting top-of-funnel volume.