Many founders mistakenly view freemium as a complete business model. It's actually a top-of-funnel acquisition strategy that replaces marketing spend with a free product to generate leads. The real business model is the subsequent upsell to paid tiers.

Read AI discovered that the longer a user stays on the free plan, the more likely they are to eventually pay. By allowing users to build a large personal data archive for free, the value of upgrading to access and query that history becomes a powerful, self-created incentive.

The goal of a free trial isn't just to let users 'try before they buy.' It's to integrate your solution into their workflow so that its eventual removal creates a powerful sense of loss and deprivation. This feeling of losing the solution, rather than the initial desire for it, is what drives conversion.

Counter to the "do one thing" mantra, Simple AI maintains a free consumer app. This product serves as a potent marketing engine where amazed users become evangelists and introduce the technology to their workplaces, creating a unique B2B acquisition channel.

Counterintuitively, a high freemium conversion rate (e.g., 7%) isn't always positive. It may indicate the free plan is too restrictive, failing to build a wide user base that provides network effects, referrals, or a long-term upgrade pipeline. The goal is a broad top-of-funnel, not just quick conversions.